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Message 139149 - Posted: 29 Mar 2020 | 4:45:51 UTC
Last modified: 29 Mar 2020 | 15:04:25 UTC

Welcome to Sophie Germain's Birthday Challenge!

The third challenge of the 2020 Series will be a 3-day challenge celebrating the 244th birthday of Sophie Germain, French mathematician and namesake of the Sophie Germain Prime Search subproject. The challenge will be offered on the SGS (LLR) application, beginning 1 April 12:00 UTC and ending 4 April 12:00 UTC.

By the beginning of the 19th century, Fermat's Last Theorem had already established itself as the most challenging problem in number theory. Mathematicians had merely succeeded in showing that there are no solutions to the following equations:
x³ + y³ = z³
x⁴ + y⁴ = z⁴
An infinite number of other equations remained, and mathematicians still had to demonstrate that none of these had any solutions. There was no progress until a young French woman reinvigorated the pursuit of Fermat's lost proof.

Marie-Sophie Germain was born on April 1, 1776 to a well-off family in Paris. From an early age, she became obsessed with number theory and the works of Euler and Newton. Despite discouragement from her parents and the gender norms of the era, she continued to pursue her passion, eventually earning wide renown through her correspondences with Lagrange, Legendre, Gauss, and others under a male pseudonym, M. LeBlanc.
Later work was finally submitted under her own name and on 8 January 1816, she became the first woman to win a prize from the Paris Academy of Sciences. While some consider her work lacking in rigor, almost all agree that it was from the lack of a formal education that was denied to her based on her gender.
Still, there's no question of her mathematical genius. Her work on Fermat's Last Theorem provided a foundation for mathematicians exploring the subject for hundreds of years after. She proved that there are no solutions to
xᵖ + yᵖ = zᵖ,
where p is a Sophie Germain prime number.

To participate in the Challenge, please select only the Sophie Germain Prime Search LLR (SGS) project in your PrimeGrid preferences section.

NOTE: If the candidate being tested is indeed prime, the task will take TWICE as long to complete. This is because it's checking for a twin prime!

Application builds are available for Linux 32 and 64 bit, Windows 32 and 64 bit and MacIntel. Intel and Zen2-based AMD CPUs with FMA3 capabilities (Haswell, Broadwell, Skylake, Kaby Lake, Coffee Lake, and Ryzen 3rd gen) will have a very large advantage, and Intel CPUs with dual AVX-512 (certain recent Intel Skylake-X and Xeon CPUs) will be the fastest.

ATTENTION: The primality program LLR is CPU intensive; so, it is vital to have a stable system with good cooling. It does not tolerate "even the slightest of errors." Please see this post for more details on how you can "stress test" your computer. Tasks on one CPU core will take about 20 minutes on fast/newer computers and 2 hours+ on slower/older computers. If your computer is highly overclocked, please consider "stress testing" it. Sieving is an excellent alternative for computers that are not able to LLR. :)

Highly overclocked Haswell, Broadwell, Skylake, Kaby Lake or Coffee Lake (i.e., Intel Core i7, i5, and i3 -4xxx or better) computers running the application will see fastest times. Note that SGS is running the latest AVX-512 version of LLR which takes full advantage of the features of these newer CPUs. It's faster than the previous LLR app and draws more power and produces more heat. If you have certain recent Intel Skylake-X and Xeon CPUs, especially if it's overclocked or has overclocked memory, and haven't run the new AVX-512 LLR before, we strongly suggest running it before the challenge while you are monitoring the temperatures.

Please, please, please make sure your machines are up to the task.


Multi-threading optimisation instructions

Those looking to maximise their computer's performance during this challenge, or when running LLR in general, may find this information useful.


  • Your mileage may vary. Before the challenge starts, take some time and experiment and see what works best on your computer.
  • If you have an Intel CPU with hyperthreading, either turn off the hyperthreading in the BIOS, or set BOINC to use 50% of the processors.

    • If you're using a GPU for other tasks, it may be beneficial to leave hyperthreading on in the BIOS and instead tell BOINC to use 50% of the CPU's. This will allow one of the hyperthreads to service the GPU.


  • The new multi-threading system is now live. This will allow you to select multi-threading from the project preferences web page. No more app_config.xml. It works like this:

    • In the preferences selection, there are selections for "max jobs" and "max cpus", similar to the settings in app_config.
    • Unlike app_config, these two settings apply to ALL apps. You can't chose 1 thread for SGS and 4 for SoB. When you change apps, you need to change your multithreading settings if you want to run a different number of threads.
    • There will be individual settings for each venue (location).
    • This will eliminate the problem of BOINC downloading 1 task for every core.
    • The hyperthreading control isn't possible at this time.
    • The "max cpus" control will only apply to LLR apps. The "max jobs" control applies to all apps.


  • If you want to continue to use app_config.xml for LLR tasks, you need to change it if you want it to work. Please see this message for more information.
  • Some people have observed that when using multithreaded LLR, hyperthreading is actually beneficial. We encourage you to experiment and see what works best for you.



Time zone converter:

The World Clock - Time Zone Converter

NOTE: The countdown clock on the front page uses the host computer time. Therefore, if your computer time is off, so will the countdown clock. For precise timing, use the UTC Time in the data section at the very top, above the countdown clock.

Scoring Information

Scores will be kept for individuals and teams. Only tasks issued AFTER 1st April 2020 12:00 UTC and received BEFORE 4th March 2020 12:00 UTC will be considered for credit. We will be using the same scoring method as we currently use for BOINC credits. A quorum of 2 is NOT needed to award Challenge score - i.e. no double checker. Therefore, each returned result will earn a Challenge score. Please note that if the result is eventually declared invalid, the score will be removed.

At the Conclusion of the Challenge

    We kindly ask users "moving on" to ABORT their tasks instead of DETACHING, RESETTING, or PAUSING.

    ABORTING tasks allows them to be recycled immediately; thus a much faster "clean up" to the end of an LLR Challenge. DETACHING, RESETTING, and PAUSING tasks causes them to remain in limbo until they EXPIRE. Therefore, we must wait until tasks expire to send them out to be completed.

    Please consider either completing what's in the queue or ABORTING them. Thank you. :)


About the Sophie Germain Prime Search

A prime number p is called a Sophie Germain prime if 2p + 1 is also prime. For example, 5 is a Sophie Germain prime because it is prime and 2 × 5 + 1 = 11, is also prime. These numbers are named after Marie-Sophie Germain, an extraordinary "French mathematician who made important contributions to the fields of differential geometry and number theory and to the study of Fermat's Last Theorem." (Wiki)

We'll be searching the form k*2^n-1. If it is prime, then we'll check k*2^n+1, k*2^(n-1)-1, & k*2^(n+1)-1. The opportunity to find SG's and Twins in the same subproject is appealing.

For more information about Sophie Germain primes, please visit these links:
http://primes.utm.edu/glossary/page.php?sort=SophieGermainPrime
http://mathworld.wolfram.com/SophieGermainPrime.html
http://en.wikipedia.org/wiki/Sophie_Germain_prime

For more information about Marie-Sophie Germain, please visit these links:
http://en.wikipedia.org/wiki/Sophie_Germain
http://www.pbs.org/wgbh/nova/proof/germain.html

What is LLR?

The Lucas-Lehmer-Riesel (LLR) test is a primality test for numbers of the form N = k*2^n − 1, with 2^n > k. Also, LLR is a program developed by Jean Penne that can run the LLR-tests. It includes the Proth test to perform +1 tests and PRP to test non base 2 numbers. See also:

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Found 1 prime in the 2020 Tour de Primes321 LLR Silver: Earned 100,000 credits (360,928)Cullen LLR Bronze: Earned 10,000 credits (98,851)ESP LLR Silver: Earned 100,000 credits (139,922)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Ruby: Earned 2,000,000 credits (4,686,828)PSP LLR Silver: Earned 100,000 credits (212,242)SoB LLR Silver: Earned 100,000 credits (237,390)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Bronze: Earned 10,000 credits (99,305)TRP LLR Bronze: Earned 10,000 credits (71,060)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve Silver: Earned 100,000 credits (175,037)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 139156 - Posted: 29 Mar 2020 | 20:40:32 UTC - in response to Message 139149.
Last modified: 29 Mar 2020 | 20:42:20 UTC

We'll be searching the form k*2^n-1. If it is prime, then we'll check k*2^n+1, k*2^(n-1)-1, & k*2^(n+1)-1. The opportunity to find SG's and Twins in the same subproject is appealing.


Good that you edited the description! Because as has been discussed before, the "quad sieve" that was used (a long time ago) to filter the candidates for this SGS project, did not ensure that all of these three "related" forms are without a small factor. In particular, k*2^(n-1)-1 usually has a small factor, so that candidate was not considered by the sieve.

To show explicitly what I mean, here are ten recent SGS finds and a small factor of the related number (p-1)/2:

4991974083567*2^1290000-1 is prime, but 4991974083567*2^1289999-1 has the small factor 5. 4989137266155*2^1290000-1 is prime, but 4989137266155*2^1289999-1 has the small factor 1861. 4986988019907*2^1290000-1 is prime, but 4986988019907*2^1289999-1 has the small factor 5. 4986512304237*2^1290000-1 is prime, but 4986512304237*2^1289999-1 has the small factor 5. 4986020311725*2^1290000-1 is prime, but 4986020311725*2^1289999-1 has the small factor 11. 4983853372935*2^1290000-1 is prime, but 4983853372935*2^1289999-1 has the small factor 19. 4983600957657*2^1290000-1 is prime, but 4983600957657*2^1289999-1 has the small factor 5. 4982485133985*2^1290000-1 is prime, but 4982485133985*2^1289999-1 has the small factor 7. 4977027070095*2^1290000-1 is prime, but 4977027070095*2^1289999-1 has the small factor 13. 4974418692525*2^1290000-1 is prime, but 4974418692525*2^1289999-1 has the small factor 7.

Next time PrimeGrid does sieving for such a Sophie Germain/Twin subproject, please consider carefully if you want to include all three "related" candidates, p+2 and (p-1)/2 and 2p+1.

--

I am going to participate in this challenge with one "droplet" from The Science Cloud.

/JeppeSN

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Message 139157 - Posted: 29 Mar 2020 | 21:35:42 UTC - in response to Message 139156.

We'll be searching the form k*2^n-1. If it is prime, then we'll check k*2^n+1, k*2^(n-1)-1, & k*2^(n+1)-1. The opportunity to find SG's and Twins in the same subproject is appealing.


Good that you edited the description! Because as has been discussed before, the "quad sieve" that was used (a long time ago) to filter the candidates for this SGS project, did not ensure that all of these three "related" forms are without a small factor. In particular, k*2^(n-1)-1 usually has a small factor, so that candidate was not considered by the sieve.


Because really it was not a quad, it was triple sieve (3 of 4 sequences). We verified it some time ago and finally fixed this erroneous description.

There are different possible approaches for SGS sieving method, but it seems that triple sieve was a good compromise. Each sieve intersects with another by only 2%. If you want to add 3rd sequence (triple sieve), you must sieve "k" 50 times farther to get same number of candidates to test. Quad sieve again must be 50 times farther - "k" quickly rises to the skies and it becomes very difficult and slow to manage such sieve (very sparse candidates with huge gaps).

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Message 139158 - Posted: 30 Mar 2020 | 2:19:13 UTC - in response to Message 139149.

Tasks on one CPU core will take about 20 minutes on fast/newer computers and 2 hours+ on slower/older computers.


Is this really true for SGS? Even on my 5-year-old laptop CPU a task usually only takes about 12 - 15 minutes. A "fast/newer" computer should have no problem completing these tasks in 5 to 10 minutes.
____________
8915 × 2 ^ 1507177 + 1 -- 453,710 digit PPSE
6603 × 2 ^ 1411654 + 1 -- 424,955 digit PPSE (DC)

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Message 139161 - Posted: 30 Mar 2020 | 8:05:46 UTC - in response to Message 139158.

Tasks on one CPU core will take about 20 minutes on fast/newer computers and 2 hours+ on slower/older computers.


Is this really true for SGS? Even on my 5-year-old laptop CPU a task usually only takes about 12 - 15 minutes. A "fast/newer" computer should have no problem completing these tasks in 5 to 10 minutes.

I agree it's a bit misleading, perhaps the numbers could be tweaked a little. I guess it really comes down to what you define as "faster/newer" though.

I tried running SGS on a 7 years old 4700HQ (with FMA3) and it finished single-threaded in 16 minutes, however I know there are much older CPUs still being used here.

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Discovered the World's First base 116 Generalized Cullen prime!!!Discovered 25 mega primesEliminated 7 conjecture "k"sDiscovered 1 Sophie Germain pairDiscovered 2 Fermat divisors2012 Tour de Primes highest prime count2012 Tour de Primes most Mountain Stage primes2015 Tour de Primes highest prime count2016 Tour de Primes highest prime countFound 23 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 2 primes in the 2018 Tour de Primes Mountain Stage2019 Tour de Primes highest prime countFound 22 primes in the 2019 Tour de Primes2020 Tour de Primes highest prime scoreFound 21 primes in the 2020 Tour de PrimesFound 4 mega primes in the 2020 Tour de Primes321 LLR Double Bronze: Earned 100,000,000 credits (110,931,288)Cullen LLR Double Bronze: Earned 100,000,000 credits (103,870,990)ESP LLR Double Bronze: Earned 100,000,000 credits (167,709,615)Generalized Cullen/Woodall LLR Double Bronze: Earned 100,000,000 credits (108,461,080)PPS LLR Double Gold: Earned 500,000,000 credits (612,541,807)PSP LLR Double Bronze: Earned 100,000,000 credits (126,982,721)SoB LLR Double Bronze: Earned 100,000,000 credits (135,747,083)SR5 LLR Double Silver: Earned 200,000,000 credits (214,194,272)SGS LLR Double Bronze: Earned 100,000,000 credits (182,944,020)TPS LLR (retired) Silver: Earned 100,000 credits (235,439)TRP LLR Double Bronze: Earned 100,000,000 credits (121,443,822)Woodall LLR Double Bronze: Earned 100,000,000 credits (101,447,725)321 Sieve Double Silver: Earned 200,000,000 credits (210,818,608)Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (83,794,448)Generalized Cullen/Woodall Sieve (suspended) Double Silver: Earned 200,000,000 credits (285,139,652)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,187,907,978)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Double Silver: Earned 200,000,000 credits (203,523,358)TRP Sieve (suspended) Double Silver: Earned 200,000,000 credits (201,489,157)AP 26/27 Double Silver: Earned 200,000,000 credits (269,909,172)GFN Double Amethyst: Earned 1,000,000,000 credits (1,669,597,610)PSA Double Silver: Earned 200,000,000 credits (259,058,048)
Message 139162 - Posted: 30 Mar 2020 | 11:15:17 UTC - in response to Message 139161.

Tasks on one CPU core will take about 20 minutes on fast/newer computers and 2 hours+ on slower/older computers.


Is this really true for SGS? Even on my 5-year-old laptop CPU a task usually only takes about 12 - 15 minutes. A "fast/newer" computer should have no problem completing these tasks in 5 to 10 minutes.

I agree it's a bit misleading, perhaps the numbers could be tweaked a little. I guess it really comes down to what you define as "faster/newer" though.

I tried running SGS on a 7 years old 4700HQ (with FMA3) and it finished single-threaded in 16 minutes, however I know there are much older CPUs still being used here.


AMD fx-8350 runs these in about 25 minutes, but that is multi-threaded with 2 threads. Single-threaded will take a bit less than twice that long.

The 20 minutes mark should be read as faster CPUs will typically take under 20 minutes running single-threaded, while older (pre-AVX Intel and older AMD) CPUs will take longer than that with some running over 2 hours per unit.

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Discovered 1 mega primeFound 4 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (4,552,288)Cullen LLR Ruby: Earned 2,000,000 credits (2,726,858)ESP LLR Ruby: Earned 2,000,000 credits (3,862,354)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,072,438)PPS LLR Jade: Earned 10,000,000 credits (12,611,947)PSP LLR Turquoise: Earned 5,000,000 credits (6,178,082)SoB LLR Turquoise: Earned 5,000,000 credits (5,396,650)SR5 LLR Turquoise: Earned 5,000,000 credits (8,815,713)SGS LLR Turquoise: Earned 5,000,000 credits (5,290,581)TRP LLR Ruby: Earned 2,000,000 credits (2,137,075)Woodall LLR Ruby: Earned 2,000,000 credits (2,341,684)321 Sieve Sapphire: Earned 20,000,000 credits (26,182,363)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (29,540,183)PPS Sieve Double Bronze: Earned 100,000,000 credits (106,061,773)AP 26/27 Sapphire: Earned 20,000,000 credits (23,251,293)GFN Double Bronze: Earned 100,000,000 credits (118,350,154)PSA Double Bronze: Earned 100,000,000 credits (111,409,691)
Message 139163 - Posted: 30 Mar 2020 | 11:32:38 UTC - in response to Message 139162.

Tasks on one CPU core will take about 20 minutes on fast/newer computers and 2 hours+ on slower/older computers.


Is this really true for SGS? Even on my 5-year-old laptop CPU a task usually only takes about 12 - 15 minutes. A "fast/newer" computer should have no problem completing these tasks in 5 to 10 minutes.

I agree it's a bit misleading, perhaps the numbers could be tweaked a little. I guess it really comes down to what you define as "faster/newer" though.

I tried running SGS on a 7 years old 4700HQ (with FMA3) and it finished single-threaded in 16 minutes, however I know there are much older CPUs still being used here.


AMD fx-8350 runs these in about 25 minutes, but that is multi-threaded with 2 threads. Single-threaded will take a bit less than twice that long.

The 20 minutes mark should be read as faster CPUs will typically take under 20 minutes running single-threaded, while older (pre-AVX Intel and older AMD) CPUs will take longer than that with some running over 2 hours per unit.


I like this phrasing.

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321 LLR Amethyst: Earned 1,000,000 credits (1,050,383)Cullen LLR Gold: Earned 500,000 credits (501,351)ESP LLR Amethyst: Earned 1,000,000 credits (1,007,591)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,000,238)PPS LLR Gold: Earned 500,000 credits (830,447)PSP LLR Ruby: Earned 2,000,000 credits (2,000,886)SoB LLR Amethyst: Earned 1,000,000 credits (1,836,398)SR5 LLR Amethyst: Earned 1,000,000 credits (1,241,653)SGS LLR Amethyst: Earned 1,000,000 credits (1,120,373)TRP LLR Gold: Earned 500,000 credits (503,503)Woodall LLR Gold: Earned 500,000 credits (509,700)321 Sieve Jade: Earned 10,000,000 credits (10,535,153)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,013,479)PPS Sieve Double Bronze: Earned 100,000,000 credits (120,135,698)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (500,162)TRP Sieve (suspended) Gold: Earned 500,000 credits (500,031)AP 26/27 Sapphire: Earned 20,000,000 credits (20,000,721)GFN Jade: Earned 10,000,000 credits (18,667,105)
Message 139166 - Posted: 30 Mar 2020 | 13:15:23 UTC

In general, is there any difference between a 50% CPU setting or running on 2 threads on a hyper-threaded machine? Should have planned ahead to do some testing but no time now.

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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139167 - Posted: 30 Mar 2020 | 13:23:51 UTC - in response to Message 139163.

Since SGS sizes don't change much, the benches I did last year on my Core2Duo P8400 (mobile) could mean something. Runtimes were somewhere between 75 and 100 minutes, so it's actually not that bad. i5-2400 (FMA3) can finish these units (single-threaded) in 45 minutes, and my Zen1 can do roughly the same, sometimes faster at 40min.
____________
JonDan School Services
GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

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Credit: 372,951,895
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Discovered 1 mega primeFound 2 primes in the 2018 Tour de PrimesFound 3 primes in the 2019 Tour de PrimesFound 2 primes in the 2020 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,055,954)Cullen LLR Turquoise: Earned 5,000,000 credits (5,064,934)ESP LLR Turquoise: Earned 5,000,000 credits (5,005,551)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,308,650)PPS LLR Turquoise: Earned 5,000,000 credits (9,873,020)PSP LLR Turquoise: Earned 5,000,000 credits (5,032,097)SoB LLR Jade: Earned 10,000,000 credits (10,042,754)SR5 LLR Jade: Earned 10,000,000 credits (10,002,093)SGS LLR Jade: Earned 10,000,000 credits (10,000,020)TRP LLR Turquoise: Earned 5,000,000 credits (5,759,074)Woodall LLR Turquoise: Earned 5,000,000 credits (5,053,050)321 Sieve Jade: Earned 10,000,000 credits (10,120,432)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,004,494)PPS Sieve Double Bronze: Earned 100,000,000 credits (100,111,958)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,002,980)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,010,755)AP 26/27 Emerald: Earned 50,000,000 credits (80,734,667)GFN Emerald: Earned 50,000,000 credits (97,326,569)PSA Silver: Earned 100,000 credits (442,843)
Message 139169 - Posted: 30 Mar 2020 | 16:05:42 UTC - in response to Message 139166.

In general, is there any difference between a 50% CPU setting or running on 2 threads on a hyper-threaded machine? Should have planned ahead to do some testing but no time now.


If you run SGS single threaded (1 task per thread) then turning hyper threading off or setting BOINC to use 50% of your CPUs will give you very similar results. You will have two tasks running at once and two threads free.
You can also experiment with running a single task at once with two threads per task. On some older or lower end CPUs you might get better results with this configuration.

The common advice for SGS is to run one task per physical core on your CPU. So that would be where you would turn HT off or set BOINC to use 50% of the CPUs.
____________
My Primes
Badge Score: 2*1 + 4*2 + 6*9 + 7*4 + 9*2 + 10*1 = 120

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Eliminated 1 conjecture "k"Found 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Silver: Earned 100,000 credits (229,492)Cullen LLR Silver: Earned 100,000 credits (110,733)PPS LLR Turquoise: Earned 5,000,000 credits (5,561,881)PSP LLR Silver: Earned 100,000 credits (104,385)SoB LLR Silver: Earned 100,000 credits (106,117)SR5 LLR Silver: Earned 100,000 credits (139,802)SGS LLR Amethyst: Earned 1,000,000 credits (1,323,052)TRP LLR Silver: Earned 100,000 credits (122,712)Woodall LLR Silver: Earned 100,000 credits (122,944)321 Sieve Silver: Earned 100,000 credits (104,900)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,599)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (515,556)PPS Sieve Jade: Earned 10,000,000 credits (11,593,037)TRP Sieve (suspended) Silver: Earned 100,000 credits (255,612)AP 26/27 Ruby: Earned 2,000,000 credits (2,579,917)GFN Sapphire: Earned 20,000,000 credits (23,317,763)PSA Turquoise: Earned 5,000,000 credits (7,522,050)
Message 139170 - Posted: 30 Mar 2020 | 16:09:27 UTC - in response to Message 139167.

Since SGS sizes don't change much, the benches I did last year on my Core2Duo P8400 (mobile) could mean something. Runtimes were somewhere between 75 and 100 minutes, so it's actually not that bad. i5-2400 (FMA3) can finish these units (single-threaded) in 45 minutes, and my Zen1 can do roughly the same, sometimes faster at 40min.

I5-2400 doesnot have FMA3, it has only AVX
____________
314187728^131072+1 GENERALIZED FERMAT :)
93*10^1029523-1 REPDIGIT PRIME
31*332^367560+1 CRUS PRIME
Proud member of team Aggie The Pew. Go Aggie!

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Found 1 prime in the 2020 Tour de Primes321 LLR Silver: Earned 100,000 credits (360,928)Cullen LLR Bronze: Earned 10,000 credits (98,851)ESP LLR Silver: Earned 100,000 credits (139,922)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Ruby: Earned 2,000,000 credits (4,686,828)PSP LLR Silver: Earned 100,000 credits (212,242)SoB LLR Silver: Earned 100,000 credits (237,390)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Bronze: Earned 10,000 credits (99,305)TRP LLR Bronze: Earned 10,000 credits (71,060)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve Silver: Earned 100,000 credits (175,037)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 139181 - Posted: 31 Mar 2020 | 11:02:27 UTC

Who can guess how many primes will be found during the three days? List

(Only count primes where the 1st finder's task was both sent out and returned within the three days.)

/JeppeSN

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Credit: 1,938,088
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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139185 - Posted: 31 Mar 2020 | 13:40:19 UTC - in response to Message 139181.

Well SGS just crossed the 5T k mark.
I thought there would be 10 *chuckles*
____________
JonDan School Services
GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

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ID: 1209161
Credit: 56,382,226
RAC: 417,953
Found 1 prime in the 2020 Tour de Primes321 LLR Silver: Earned 100,000 credits (114,586)Cullen LLR Gold: Earned 500,000 credits (560,122)ESP LLR Silver: Earned 100,000 credits (382,519)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (940,616)PPS LLR Jade: Earned 10,000,000 credits (10,109,375)SoB LLR Gold: Earned 500,000 credits (543,593)SR5 LLR Amethyst: Earned 1,000,000 credits (1,297,330)SGS LLR Jade: Earned 10,000,000 credits (11,365,543)TRP LLR Gold: Earned 500,000 credits (693,004)Woodall LLR Silver: Earned 100,000 credits (217,517)321 Sieve Ruby: Earned 2,000,000 credits (4,012,433)PPS Sieve Jade: Earned 10,000,000 credits (13,032,286)AP 26/27 Silver: Earned 100,000 credits (137,462)GFN Turquoise: Earned 5,000,000 credits (6,760,586)PSA Turquoise: Earned 5,000,000 credits (6,217,290)
Message 139192 - Posted: 31 Mar 2020 | 15:28:53 UTC

I'll guess 25.... with me one and a DC

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Found 1 prime in the 2019 Tour de PrimesFound 5 primes in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (729,188)Cullen LLR Gold: Earned 500,000 credits (536,353)ESP LLR Gold: Earned 500,000 credits (521,539)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (519,336)PPS LLR Turquoise: Earned 5,000,000 credits (6,650,617)PSP LLR Gold: Earned 500,000 credits (545,010)SoB LLR Gold: Earned 500,000 credits (784,120)SR5 LLR Ruby: Earned 2,000,000 credits (2,081,611)SGS LLR Amethyst: Earned 1,000,000 credits (1,408,150)TRP LLR Gold: Earned 500,000 credits (526,734)Woodall LLR Gold: Earned 500,000 credits (539,481)321 Sieve Gold: Earned 500,000 credits (590,369)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,057,633)PPS Sieve Emerald: Earned 50,000,000 credits (57,296,887)AP 26/27 Ruby: Earned 2,000,000 credits (2,919,046)GFN Jade: Earned 10,000,000 credits (16,360,852)
Message 139199 - Posted: 31 Mar 2020 | 20:40:02 UTC

No luck so far. I've already been crunching for 3 days :D
____________

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Found 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (6,002,936)Cullen LLR Turquoise: Earned 5,000,000 credits (5,005,909)ESP LLR Turquoise: Earned 5,000,000 credits (5,303,526)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,202,873)PPS LLR Turquoise: Earned 5,000,000 credits (5,900,040)PSP LLR Turquoise: Earned 5,000,000 credits (5,513,728)SoB LLR Turquoise: Earned 5,000,000 credits (8,851,996)SR5 LLR Turquoise: Earned 5,000,000 credits (5,199,189)SGS LLR Turquoise: Earned 5,000,000 credits (5,100,018)TRP LLR Turquoise: Earned 5,000,000 credits (5,008,328)Woodall LLR Turquoise: Earned 5,000,000 credits (5,124,820)321 Sieve Turquoise: Earned 5,000,000 credits (5,271,846)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (268,250)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,502)PPS Sieve Double Silver: Earned 200,000,000 credits (300,002,145)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,133)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,970)AP 26/27 Double Bronze: Earned 100,000,000 credits (162,645,847)GFN Double Bronze: Earned 100,000,000 credits (130,000,018)PSA Double Silver: Earned 200,000,000 credits (200,000,001)
Message 139201 - Posted: 31 Mar 2020 | 21:32:28 UTC

We found 18 during the 1-day challenge in 2017. But how much has SGS progressed since then & how much sparser (if at all) have SGS primes become? Assuming linear growth for both I'm going to say 54 primes.

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Discovered the World's First AP27!!!Discovered 9 mega primesDiscovered 1 AP272018 Tour de Primes largest primeFound 4 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,910,214)Cullen LLR Jade: Earned 10,000,000 credits (17,346,882)ESP LLR Turquoise: Earned 5,000,000 credits (6,404,450)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,466,498)PPS LLR Sapphire: Earned 20,000,000 credits (44,433,561)PSP LLR Turquoise: Earned 5,000,000 credits (7,758,266)SoB LLR Sapphire: Earned 20,000,000 credits (36,287,070)SR5 LLR Turquoise: Earned 5,000,000 credits (8,227,593)SGS LLR Turquoise: Earned 5,000,000 credits (5,177,463)TRP LLR Sapphire: Earned 20,000,000 credits (26,311,351)Woodall LLR Turquoise: Earned 5,000,000 credits (5,062,771)321 Sieve Turquoise: Earned 5,000,000 credits (7,116,748)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,892,369)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,515,338)PPS Sieve Double Gold: Earned 500,000,000 credits (792,491,761)TRP Sieve (suspended) Silver: Earned 100,000 credits (121,416)AP 26/27 Emerald: Earned 50,000,000 credits (87,324,757)GFN Double Ruby: Earned 2,000,000,000 credits (3,064,168,577)
Message 139202 - Posted: 31 Mar 2020 | 21:58:00 UTC
Last modified: 31 Mar 2020 | 21:58:47 UTC

I'm saying 58. :)

same zone but a tad more.
____________
My lucky numbers 10590941048576+1 and 181457032297751865536+1

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321 LLR Bronze: Earned 10,000 credits (45,683)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (49,934)PPS LLR Silver: Earned 100,000 credits (490,210)PSP LLR Gold: Earned 500,000 credits (533,679)SR5 LLR Ruby: Earned 2,000,000 credits (4,371,912)SGS LLR Amethyst: Earned 1,000,000 credits (1,910,143)321 Sieve Gold: Earned 500,000 credits (696,489)PPS Sieve Jade: Earned 10,000,000 credits (19,430,444)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,657)AP 26/27 Jade: Earned 10,000,000 credits (19,414,486)GFN Jade: Earned 10,000,000 credits (13,774,858)
Message 139203 - Posted: 31 Mar 2020 | 22:34:31 UTC - in response to Message 139202.

What number should I be looking at for optimizing my system (multithreading or not)?
Run time or CPU time?

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Discovered 1 mega primeFound 4 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (4,552,288)Cullen LLR Ruby: Earned 2,000,000 credits (2,726,858)ESP LLR Ruby: Earned 2,000,000 credits (3,862,354)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,072,438)PPS LLR Jade: Earned 10,000,000 credits (12,611,947)PSP LLR Turquoise: Earned 5,000,000 credits (6,178,082)SoB LLR Turquoise: Earned 5,000,000 credits (5,396,650)SR5 LLR Turquoise: Earned 5,000,000 credits (8,815,713)SGS LLR Turquoise: Earned 5,000,000 credits (5,290,581)TRP LLR Ruby: Earned 2,000,000 credits (2,137,075)Woodall LLR Ruby: Earned 2,000,000 credits (2,341,684)321 Sieve Sapphire: Earned 20,000,000 credits (26,182,363)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (29,540,183)PPS Sieve Double Bronze: Earned 100,000,000 credits (106,061,773)AP 26/27 Sapphire: Earned 20,000,000 credits (23,251,293)GFN Double Bronze: Earned 100,000,000 credits (118,350,154)PSA Double Bronze: Earned 100,000,000 credits (111,409,691)
Message 139205 - Posted: 1 Apr 2020 | 2:21:33 UTC - in response to Message 139203.

What number should I be looking at for optimizing my system (multithreading or not)?
Run time or CPU time?

Try optimize for throughput for the challenge. Run times are deceiving.

Given the two system you have, I'd say run single-threaded for all of them. Make sure to run with 50% CPU cores if you leave HT enabled, or disable HT.

lashrasch
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Credit: 60,732,495
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321 LLR Bronze: Earned 10,000 credits (45,683)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (49,934)PPS LLR Silver: Earned 100,000 credits (490,210)PSP LLR Gold: Earned 500,000 credits (533,679)SR5 LLR Ruby: Earned 2,000,000 credits (4,371,912)SGS LLR Amethyst: Earned 1,000,000 credits (1,910,143)321 Sieve Gold: Earned 500,000 credits (696,489)PPS Sieve Jade: Earned 10,000,000 credits (19,430,444)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,657)AP 26/27 Jade: Earned 10,000,000 credits (19,414,486)GFN Jade: Earned 10,000,000 credits (13,774,858)
Message 139207 - Posted: 1 Apr 2020 | 6:04:16 UTC - in response to Message 139205.

What number should I be looking at for optimizing my system (multithreading or not)?
Run time or CPU time?

Try optimize for throughput for the challenge. Run times are deceiving.

Given the two system you have, I'd say run single-threaded for all of them. Make sure to run with 50% CPU cores if you leave HT enabled, or disable HT.




I'm sorry, but this confuses me a bit. Where do i "enable" HT? I only see one place relevant and that's primegrid preferences where I set the amount of threads per task.

If I want to do hyperthreading, I'll set my client to 50% AND change the value to more than "2"in primegrid preferences?

I'll be running the challenge on i9-7900x 10 cores/20threads.

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321 LLR Silver: Earned 100,000 credits (106,389)PPS LLR Gold: Earned 500,000 credits (866,793)SR5 LLR Silver: Earned 100,000 credits (105,157)SGS LLR Silver: Earned 100,000 credits (139,857)TRP LLR Silver: Earned 100,000 credits (105,612)321 Sieve Gold: Earned 500,000 credits (512,303)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (503,510)PPS Sieve Amethyst: Earned 1,000,000 credits (1,577,628)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (34,269)TRP Sieve (suspended) Bronze: Earned 10,000 credits (32,679)AP 26/27 Silver: Earned 100,000 credits (117,247)GFN Gold: Earned 500,000 credits (500,739)PSA Silver: Earned 100,000 credits (140,044)
Message 139210 - Posted: 1 Apr 2020 | 7:48:19 UTC - in response to Message 139207.


I'm sorry, but this confuses me a bit. Where do i "enable" HT? I only see one place relevant and that's primegrid preferences where I set the amount of threads per task.

If I want to do hyperthreading, I'll set my client to 50% AND change the value to more than "2"in primegrid preferences?

I'll be running the challenge on i9-7900x 10 cores/20threads.


To disable hyperthreading, you can either get into your system's BIOS and disable it altogether (advanced), or set your client's preferences to only use 50% of your CPU cores (easy).
____________
8915 × 2 ^ 1507177 + 1 -- 453,710 digit PPSE
6603 × 2 ^ 1411654 + 1 -- 424,955 digit PPSE (DC)

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Credit: 60,732,495
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321 LLR Bronze: Earned 10,000 credits (45,683)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (49,934)PPS LLR Silver: Earned 100,000 credits (490,210)PSP LLR Gold: Earned 500,000 credits (533,679)SR5 LLR Ruby: Earned 2,000,000 credits (4,371,912)SGS LLR Amethyst: Earned 1,000,000 credits (1,910,143)321 Sieve Gold: Earned 500,000 credits (696,489)PPS Sieve Jade: Earned 10,000,000 credits (19,430,444)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,657)AP 26/27 Jade: Earned 10,000,000 credits (19,414,486)GFN Jade: Earned 10,000,000 credits (13,774,858)
Message 139211 - Posted: 1 Apr 2020 | 8:33:17 UTC - in response to Message 139210.


I'm sorry, but this confuses me a bit. Where do i "enable" HT? I only see one place relevant and that's primegrid preferences where I set the amount of threads per task.

If I want to do hyperthreading, I'll set my client to 50% AND change the value to more than "2"in primegrid preferences?

I'll be running the challenge on i9-7900x 10 cores/20threads.


To disable hyperthreading, you can either get into your system's BIOS and disable it altogether (advanced), or set your client's preferences to only use 50% of your CPU cores (easy).



Now I'm even more confused... If I set my clients preferences to 50%, the tasks finish quicker, but half of them are running at the same time. Which makes me think it's multi-threading or hyper-threading. But you are telling me that's how to turn OFF hyperthreading?

Let's say I keep hyperthreading ON in BIOS (I don't plan on doing anything in my BIOS)
And I leave my client on 100%, am I then hyperthreading? The number of tasks running at any given time is the same as the number of threads I can run on my CPU

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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139213 - Posted: 1 Apr 2020 | 9:22:53 UTC - in response to Message 139211.

I think numbermaniac meant, as all other PG ppl would mean, for that case you are avoiding using all the threads on a CPU.

But as SGS tasks are literally tiny, you shouldn't be multithreading...well only if you have a pre-skylake.

Let's say I keep hyperthreading ON in BIOS (I don't plan on doing anything in my BIOS)
And I leave my client on 100%, am I then hyperthreading?

Yes, you are. And technically in the *easy* way numbermaniac mentioned below you are still running hyperthreaded but using half the cores, on Linux I suppose this would be better because Linux (from what I've heard) is better at placing these tasks on the same cores.

Let's say on windows 10 you have a i9-9900X (10C/20T):
you keep the HT (hyperthreading) ON in BIOS
you set BOINC to use 50% of all cores
then you set PG to use all cores available for the SoB task you just downloaded.
Because BOINC/Win10 recognizes your 9900X as having 20 "CPUs", you would in this case be using 10 threads or "CPUs" as BOINC claims.
Now this is where windows and linux (supposedly) differs:
Windows assigns this job randomly to any of the 20 "CPUs", while Linux tries to put the jobs on complete cores, aka 5 cores, where windows might put the job on one thread each of the 10 cores.

In this challenge you might as well use 50% in BOINC and MT to 2 threads with PG prefs for linux, but for windows (or in general!) I'd recommend BIOS, cuz it's once and for all, and doesn't depend on the OS.
____________
JonDan School Services
GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

lashrasch
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Posts: 31
ID: 15484
Credit: 60,732,495
RAC: 561,257
321 LLR Bronze: Earned 10,000 credits (45,683)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (49,934)PPS LLR Silver: Earned 100,000 credits (490,210)PSP LLR Gold: Earned 500,000 credits (533,679)SR5 LLR Ruby: Earned 2,000,000 credits (4,371,912)SGS LLR Amethyst: Earned 1,000,000 credits (1,910,143)321 Sieve Gold: Earned 500,000 credits (696,489)PPS Sieve Jade: Earned 10,000,000 credits (19,430,444)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,657)AP 26/27 Jade: Earned 10,000,000 credits (19,414,486)GFN Jade: Earned 10,000,000 credits (13,774,858)
Message 139214 - Posted: 1 Apr 2020 | 9:34:57 UTC - in response to Message 139213.

I think numbermaniac meant, as all other PG ppl would mean, for that case you are avoiding using all the threads on a CPU.

But as SGS tasks are literally tiny, you shouldn't be multithreading...well only if you have a pre-skylake.

Let's say I keep hyperthreading ON in BIOS (I don't plan on doing anything in my BIOS)
And I leave my client on 100%, am I then hyperthreading?

Yes, you are. And technically in the *easy* way numbermaniac mentioned below you are still running hyperthreaded but using half the cores, on Linux I suppose this would be better because Linux (from what I've heard) is better at placing these tasks on the same cores.

Let's say on windows 10 you have a i9-9900X (10C/20T):
you keep the HT (hyperthreading) ON in BIOS
you set BOINC to use 50% of all cores
then you set PG to use all cores available for the SoB task you just downloaded.
Because BOINC/Win10 recognizes your 9900X as having 20 "CPUs", you would in this case be using 10 threads or "CPUs" as BOINC claims.
Now this is where windows and linux (supposedly) differs:
Windows assigns this job randomly to any of the 20 "CPUs", while Linux tries to put the jobs on complete cores, aka 5 cores, where windows might put the job on one thread each of the 10 cores.

In this challenge you might as well use 50% in BOINC and MT to 2 threads with PG prefs for linux, but for windows (or in general!) I'd recommend BIOS, cuz it's once and for all, and doesn't depend on the OS.


Ah, so when you say that I shouldn't multithread SGS, what you mean is. I shouldn't use more than 1 thread per core?

I have 10 Cores, Windows thinks I have 20. So I set my Boinc to use 50% -> 1 thread per core. But then I will have idle threads, right? and i wont be using all the potential of the CPU?

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Found 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,419,655)Cullen LLR Ruby: Earned 2,000,000 credits (2,291,301)ESP LLR Ruby: Earned 2,000,000 credits (2,617,477)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,076,479)PPS LLR Turquoise: Earned 5,000,000 credits (6,799,825)PSP LLR Ruby: Earned 2,000,000 credits (3,530,916)SoB LLR Ruby: Earned 2,000,000 credits (2,975,551)SR5 LLR Ruby: Earned 2,000,000 credits (2,982,194)SGS LLR Ruby: Earned 2,000,000 credits (2,842,482)TPS LLR (retired) Silver: Earned 100,000 credits (103,523)TRP LLR Ruby: Earned 2,000,000 credits (2,494,029)Woodall LLR Ruby: Earned 2,000,000 credits (2,147,072)321 Sieve Sapphire: Earned 20,000,000 credits (20,576,115)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,119,699)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,278,995)PPS Sieve Sapphire: Earned 20,000,000 credits (27,057,264)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,177)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,221,054)AP 26/27 Sapphire: Earned 20,000,000 credits (20,016,701)GFN Jade: Earned 10,000,000 credits (19,742,932)PSA Sapphire: Earned 20,000,000 credits (34,211,039)
Message 139215 - Posted: 1 Apr 2020 | 10:03:23 UTC - in response to Message 139214.

the LLR program used for SGS uses the whole resources of a core
using 2 threads on each core does not magically create additional resources
the most efficient approach is as has been described: Use 50% of CPUs

also, both Linux and Win10 do a reasonable job of allocating across cores sensibly
(at least on my machines)
____________

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Credit: 60,732,495
RAC: 561,257
321 LLR Bronze: Earned 10,000 credits (45,683)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (49,934)PPS LLR Silver: Earned 100,000 credits (490,210)PSP LLR Gold: Earned 500,000 credits (533,679)SR5 LLR Ruby: Earned 2,000,000 credits (4,371,912)SGS LLR Amethyst: Earned 1,000,000 credits (1,910,143)321 Sieve Gold: Earned 500,000 credits (696,489)PPS Sieve Jade: Earned 10,000,000 credits (19,430,444)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,657)AP 26/27 Jade: Earned 10,000,000 credits (19,414,486)GFN Jade: Earned 10,000,000 credits (13,774,858)
Message 139216 - Posted: 1 Apr 2020 | 10:10:54 UTC - in response to Message 139215.
Last modified: 1 Apr 2020 | 10:13:20 UTC

the LLR program used for SGS uses the whole resources of a core
using 2 threads on each core does not magically create additional resources
the most efficient approach is as has been described: Use 50% of CPUs

also, both Linux and Win10 do a reasonable job of allocating across cores sensibly
(at least on my machines)


Thank you, I'm just trying to wrap my head around what hyperthreading is and how it works :)

How do i monitor my "throughput" while I do the SGS?

If looking at the CPU time should be avoided, then how do I know what is most effective on my computer?

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Found 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,419,655)Cullen LLR Ruby: Earned 2,000,000 credits (2,291,301)ESP LLR Ruby: Earned 2,000,000 credits (2,617,477)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,076,479)PPS LLR Turquoise: Earned 5,000,000 credits (6,799,825)PSP LLR Ruby: Earned 2,000,000 credits (3,530,916)SoB LLR Ruby: Earned 2,000,000 credits (2,975,551)SR5 LLR Ruby: Earned 2,000,000 credits (2,982,194)SGS LLR Ruby: Earned 2,000,000 credits (2,842,482)TPS LLR (retired) Silver: Earned 100,000 credits (103,523)TRP LLR Ruby: Earned 2,000,000 credits (2,494,029)Woodall LLR Ruby: Earned 2,000,000 credits (2,147,072)321 Sieve Sapphire: Earned 20,000,000 credits (20,576,115)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,119,699)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,278,995)PPS Sieve Sapphire: Earned 20,000,000 credits (27,057,264)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,177)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,221,054)AP 26/27 Sapphire: Earned 20,000,000 credits (20,016,701)GFN Jade: Earned 10,000,000 credits (19,742,932)PSA Sapphire: Earned 20,000,000 credits (34,211,039)
Message 139217 - Posted: 1 Apr 2020 | 10:22:39 UTC - in response to Message 139216.

Use the PG website
Your Account page will show details of Tasks Returned in Last 24 Hours
If you click on your host within that table, you can see details of each individual task
which allows you to see what the impact of your settings is
____________

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Posts: 31
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Credit: 60,732,495
RAC: 561,257
321 LLR Bronze: Earned 10,000 credits (45,683)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (49,934)PPS LLR Silver: Earned 100,000 credits (490,210)PSP LLR Gold: Earned 500,000 credits (533,679)SR5 LLR Ruby: Earned 2,000,000 credits (4,371,912)SGS LLR Amethyst: Earned 1,000,000 credits (1,910,143)321 Sieve Gold: Earned 500,000 credits (696,489)PPS Sieve Jade: Earned 10,000,000 credits (19,430,444)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,657)AP 26/27 Jade: Earned 10,000,000 credits (19,414,486)GFN Jade: Earned 10,000,000 credits (13,774,858)
Message 139218 - Posted: 1 Apr 2020 | 10:55:34 UTC - in response to Message 139217.

...you can see details of each individual task
which allows you to see what the impact of your settings is



I think you have to guide me a bit more than that, boss.

How do I see the impact of my settings? Apart from run time and CPU time, there is little else to go on...

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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139219 - Posted: 1 Apr 2020 | 11:10:03 UTC - in response to Message 139218.

Try Prime95, but I don't have the details of how to do it right now, mackerel (I think) does.
____________
JonDan School Services
GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

lashrasch
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Posts: 31
ID: 15484
Credit: 60,732,495
RAC: 561,257
321 LLR Bronze: Earned 10,000 credits (45,683)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (49,934)PPS LLR Silver: Earned 100,000 credits (490,210)PSP LLR Gold: Earned 500,000 credits (533,679)SR5 LLR Ruby: Earned 2,000,000 credits (4,371,912)SGS LLR Amethyst: Earned 1,000,000 credits (1,910,143)321 Sieve Gold: Earned 500,000 credits (696,489)PPS Sieve Jade: Earned 10,000,000 credits (19,430,444)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,657)AP 26/27 Jade: Earned 10,000,000 credits (19,414,486)GFN Jade: Earned 10,000,000 credits (13,774,858)
Message 139220 - Posted: 1 Apr 2020 | 11:18:02 UTC - in response to Message 139219.

I have no idea who mackerel is, lol

I'll just leave my pc the way it is.

For challenges like this one, is there a way to monitor the progress? Progress of the challenge as a whole i mean.

numbermaniac
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Credit: 4,749,977
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321 LLR Silver: Earned 100,000 credits (106,389)PPS LLR Gold: Earned 500,000 credits (866,793)SR5 LLR Silver: Earned 100,000 credits (105,157)SGS LLR Silver: Earned 100,000 credits (139,857)TRP LLR Silver: Earned 100,000 credits (105,612)321 Sieve Gold: Earned 500,000 credits (512,303)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (503,510)PPS Sieve Amethyst: Earned 1,000,000 credits (1,577,628)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (34,269)TRP Sieve (suspended) Bronze: Earned 10,000 credits (32,679)AP 26/27 Silver: Earned 100,000 credits (117,247)GFN Gold: Earned 500,000 credits (500,739)PSA Silver: Earned 100,000 credits (140,044)
Message 139221 - Posted: 1 Apr 2020 | 11:20:30 UTC

45 minutes before the challenge starts, and already 400,000 SGS tasks have been completed in the last 24 hours. (That's more than 4 per second - can you imagine the load the server is going through right now?)

If there's another burst once the challenge begins, it's going to be incredible.
____________
8915 × 2 ^ 1507177 + 1 -- 453,710 digit PPSE
6603 × 2 ^ 1411654 + 1 -- 424,955 digit PPSE (DC)

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Found 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,419,655)Cullen LLR Ruby: Earned 2,000,000 credits (2,291,301)ESP LLR Ruby: Earned 2,000,000 credits (2,617,477)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,076,479)PPS LLR Turquoise: Earned 5,000,000 credits (6,799,825)PSP LLR Ruby: Earned 2,000,000 credits (3,530,916)SoB LLR Ruby: Earned 2,000,000 credits (2,975,551)SR5 LLR Ruby: Earned 2,000,000 credits (2,982,194)SGS LLR Ruby: Earned 2,000,000 credits (2,842,482)TPS LLR (retired) Silver: Earned 100,000 credits (103,523)TRP LLR Ruby: Earned 2,000,000 credits (2,494,029)Woodall LLR Ruby: Earned 2,000,000 credits (2,147,072)321 Sieve Sapphire: Earned 20,000,000 credits (20,576,115)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,119,699)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,278,995)PPS Sieve Sapphire: Earned 20,000,000 credits (27,057,264)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,177)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,221,054)AP 26/27 Sapphire: Earned 20,000,000 credits (20,016,701)GFN Jade: Earned 10,000,000 credits (19,742,932)PSA Sapphire: Earned 20,000,000 credits (34,211,039)
Message 139222 - Posted: 1 Apr 2020 | 11:21:54 UTC - in response to Message 139219.

you configure a bunch of settings, run some tasks, change settings, run some more
look at the info and decide which is best for you - change to those settings and leave it

or you could just follow the advice:

HT on
50% of CPUs
1 thread per task

given this is what the vast majority of us have discovered is the best for SGS
____________

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Credit: 4,749,977
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321 LLR Silver: Earned 100,000 credits (106,389)PPS LLR Gold: Earned 500,000 credits (866,793)SR5 LLR Silver: Earned 100,000 credits (105,157)SGS LLR Silver: Earned 100,000 credits (139,857)TRP LLR Silver: Earned 100,000 credits (105,612)321 Sieve Gold: Earned 500,000 credits (512,303)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (503,510)PPS Sieve Amethyst: Earned 1,000,000 credits (1,577,628)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (34,269)TRP Sieve (suspended) Bronze: Earned 10,000 credits (32,679)AP 26/27 Silver: Earned 100,000 credits (117,247)GFN Gold: Earned 500,000 credits (500,739)PSA Silver: Earned 100,000 credits (140,044)
Message 139223 - Posted: 1 Apr 2020 | 11:22:23 UTC - in response to Message 139218.

I think you have to guide me a bit more than that, boss.

How do I see the impact of my settings? Apart from run time and CPU time, there is little else to go on...


I think he just means that if you change your settings before a new task begins, and then look at the runtime of that task, you can see which of the options you were discussing earlier is the best for your computer.
____________
8915 × 2 ^ 1507177 + 1 -- 453,710 digit PPSE
6603 × 2 ^ 1411654 + 1 -- 424,955 digit PPSE (DC)

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Discovered 2 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 5 primes in the 2019 Tour de PrimesFound 6 primes in the 2020 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (8,774,878)Cullen LLR Turquoise: Earned 5,000,000 credits (5,149,818)ESP LLR Turquoise: Earned 5,000,000 credits (6,454,573)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,122,074)PPS LLR Emerald: Earned 50,000,000 credits (71,949,476)PSP LLR Jade: Earned 10,000,000 credits (15,223,714)SoB LLR Jade: Earned 10,000,000 credits (17,319,914)SR5 LLR Sapphire: Earned 20,000,000 credits (23,993,013)SGS LLR Turquoise: Earned 5,000,000 credits (7,333,201)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Jade: Earned 10,000,000 credits (16,460,208)Woodall LLR Turquoise: Earned 5,000,000 credits (5,715,464)321 Sieve Jade: Earned 10,000,000 credits (18,014,408)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,626,419)PPS Sieve Emerald: Earned 50,000,000 credits (74,140,875)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Sapphire: Earned 20,000,000 credits (21,918,894)GFN Emerald: Earned 50,000,000 credits (71,886,552)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 139224 - Posted: 1 Apr 2020 | 11:23:07 UTC - in response to Message 139219.

Try Prime95, but I don't have the details of how to do it right now, mackerel (I think) does.

http://www.primegrid.com/forum_thread.php?id=8240&nowrap=true#138938
Process at above link. FFT size to use for SGS is 128k.

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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139225 - Posted: 1 Apr 2020 | 11:33:04 UTC - in response to Message 139222.

Um I think with HT on, you should be running 2 thread tasks
____________
JonDan School Services
GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139226 - Posted: 1 Apr 2020 | 11:33:58 UTC - in response to Message 139221.

45 minutes before the challenge starts, and already 400,000 SGS tasks have been completed in the last 24 hours. (That's more than 4 per second - can you imagine the load the server is going through right now?)

If there's another burst once the challenge begins, it's going to be incredible.


welp for the server, what if a GFN15 challenge was run? *sneers* 1million tasks/day?
____________
JonDan School Services
GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

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Discovered 1 mega primeFound 4 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (4,552,288)Cullen LLR Ruby: Earned 2,000,000 credits (2,726,858)ESP LLR Ruby: Earned 2,000,000 credits (3,862,354)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,072,438)PPS LLR Jade: Earned 10,000,000 credits (12,611,947)PSP LLR Turquoise: Earned 5,000,000 credits (6,178,082)SoB LLR Turquoise: Earned 5,000,000 credits (5,396,650)SR5 LLR Turquoise: Earned 5,000,000 credits (8,815,713)SGS LLR Turquoise: Earned 5,000,000 credits (5,290,581)TRP LLR Ruby: Earned 2,000,000 credits (2,137,075)Woodall LLR Ruby: Earned 2,000,000 credits (2,341,684)321 Sieve Sapphire: Earned 20,000,000 credits (26,182,363)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (29,540,183)PPS Sieve Double Bronze: Earned 100,000,000 credits (106,061,773)AP 26/27 Sapphire: Earned 20,000,000 credits (23,251,293)GFN Double Bronze: Earned 100,000,000 credits (118,350,154)PSA Double Bronze: Earned 100,000,000 credits (111,409,691)
Message 139227 - Posted: 1 Apr 2020 | 11:39:09 UTC - in response to Message 139218.
Last modified: 1 Apr 2020 | 11:46:09 UTC

...you can see details of each individual task
which allows you to see what the impact of your settings is



I think you have to guide me a bit more than that, boss.

How do I see the impact of my settings? Apart from run time and CPU time, there is little else to go on...

If you go to your home page and scroll down, you'll be met with this table:


The tasks column shows your daily throughput. From memory, with a chip like the 7900X, you're best off running 10x single-threaded SGS.


Thank you, I'm just trying to wrap my head around what hyperthreading is and how it works :)

Regarding hyperthreading: hyperthreading is where the CPU "splits" a CPU core into two logical threads. In some scenarios, this can be helpful for making the most out of your CPU. However, as Vato mentioned, the LLR program that we use will use a core to its maximum potential. If you were to use all 20 of your threads (so 20 tasks) on 10 actual cores, you'd be "overloading" each core and decreasing overall efficiency.


Um I think with HT on, you should be running 2 thread tasks

You can choose to run 2 threads per task, but I think that's a waste of throughput.

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Found 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,419,655)Cullen LLR Ruby: Earned 2,000,000 credits (2,291,301)ESP LLR Ruby: Earned 2,000,000 credits (2,617,477)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,076,479)PPS LLR Turquoise: Earned 5,000,000 credits (6,799,825)PSP LLR Ruby: Earned 2,000,000 credits (3,530,916)SoB LLR Ruby: Earned 2,000,000 credits (2,975,551)SR5 LLR Ruby: Earned 2,000,000 credits (2,982,194)SGS LLR Ruby: Earned 2,000,000 credits (2,842,482)TPS LLR (retired) Silver: Earned 100,000 credits (103,523)TRP LLR Ruby: Earned 2,000,000 credits (2,494,029)Woodall LLR Ruby: Earned 2,000,000 credits (2,147,072)321 Sieve Sapphire: Earned 20,000,000 credits (20,576,115)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,119,699)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,278,995)PPS Sieve Sapphire: Earned 20,000,000 credits (27,057,264)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,177)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,221,054)AP 26/27 Sapphire: Earned 20,000,000 credits (20,016,701)GFN Jade: Earned 10,000,000 credits (19,742,932)PSA Sapphire: Earned 20,000,000 credits (34,211,039)
Message 139228 - Posted: 1 Apr 2020 | 11:43:09 UTC - in response to Message 139225.

Um I think with HT on, you should be running 2 thread tasks


No, this is incorrect.

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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139229 - Posted: 1 Apr 2020 | 11:46:49 UTC - in response to Message 139228.

Okay, got that

Also when I try Prime95, I get the following interesting results: running multithreaded is actually a little bit better than running single-threaded, so should I folow what P95 claims?
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GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

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Discovered 1 mega primeFound 4 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (4,552,288)Cullen LLR Ruby: Earned 2,000,000 credits (2,726,858)ESP LLR Ruby: Earned 2,000,000 credits (3,862,354)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,072,438)PPS LLR Jade: Earned 10,000,000 credits (12,611,947)PSP LLR Turquoise: Earned 5,000,000 credits (6,178,082)SoB LLR Turquoise: Earned 5,000,000 credits (5,396,650)SR5 LLR Turquoise: Earned 5,000,000 credits (8,815,713)SGS LLR Turquoise: Earned 5,000,000 credits (5,290,581)TRP LLR Ruby: Earned 2,000,000 credits (2,137,075)Woodall LLR Ruby: Earned 2,000,000 credits (2,341,684)321 Sieve Sapphire: Earned 20,000,000 credits (26,182,363)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (29,540,183)PPS Sieve Double Bronze: Earned 100,000,000 credits (106,061,773)AP 26/27 Sapphire: Earned 20,000,000 credits (23,251,293)GFN Double Bronze: Earned 100,000,000 credits (118,350,154)PSA Double Bronze: Earned 100,000,000 credits (111,409,691)
Message 139230 - Posted: 1 Apr 2020 | 11:48:35 UTC - in response to Message 139229.
Last modified: 1 Apr 2020 | 11:49:30 UTC

Okay, got that

Also when I try Prime95, I get the following interesting results: running multithreaded is actually a little bit better than running single-threaded, so should I folow what P95 claims?

On what hardware? Also could you define a little bit better? In terms of throughput? In terms of runtimes?

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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139231 - Posted: 1 Apr 2020 | 11:49:25 UTC - in response to Message 139230.
Last modified: 1 Apr 2020 | 11:50:42 UTC

Okay, got that

Also when I try Prime95, I get the following interesting results: running multithreaded is actually a little bit better than running single-threaded, so should I folow what P95 claims?

On what hardware? Define a little bit better. In terms of throughput? In terms of runtimes? In terms of?


Ryzen 5 2500U, Throughput, and by about 100ms
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GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

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Discovered 1 mega primeFound 4 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (4,552,288)Cullen LLR Ruby: Earned 2,000,000 credits (2,726,858)ESP LLR Ruby: Earned 2,000,000 credits (3,862,354)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,072,438)PPS LLR Jade: Earned 10,000,000 credits (12,611,947)PSP LLR Turquoise: Earned 5,000,000 credits (6,178,082)SoB LLR Turquoise: Earned 5,000,000 credits (5,396,650)SR5 LLR Turquoise: Earned 5,000,000 credits (8,815,713)SGS LLR Turquoise: Earned 5,000,000 credits (5,290,581)TRP LLR Ruby: Earned 2,000,000 credits (2,137,075)Woodall LLR Ruby: Earned 2,000,000 credits (2,341,684)321 Sieve Sapphire: Earned 20,000,000 credits (26,182,363)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (29,540,183)PPS Sieve Double Bronze: Earned 100,000,000 credits (106,061,773)AP 26/27 Sapphire: Earned 20,000,000 credits (23,251,293)GFN Double Bronze: Earned 100,000,000 credits (118,350,154)PSA Double Bronze: Earned 100,000,000 credits (111,409,691)
Message 139232 - Posted: 1 Apr 2020 | 11:51:29 UTC - in response to Message 139231.
Last modified: 1 Apr 2020 | 11:51:44 UTC

Okay, got that

Also when I try Prime95, I get the following interesting results: running multithreaded is actually a little bit better than running single-threaded, so should I folow what P95 claims?

Define a little bit better. In terms of throughput? In terms of runtimes? In terms of?


Ryzen 5 2500U, Throughput, and by about 100ms

Definitely give it a shot.

What does a better throughput of 100ms mean?

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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139233 - Posted: 1 Apr 2020 | 11:55:36 UTC - in response to Message 139232.

That beat me. Well, I think it means I can process more tasks in a certain amount of time. But 100ms, I don't understand how that correlates with more tasks, 100ms/the time I process one SGS?
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GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

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Credit: 470,781,125
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Discovered 1 mega primeFound 4 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (4,552,288)Cullen LLR Ruby: Earned 2,000,000 credits (2,726,858)ESP LLR Ruby: Earned 2,000,000 credits (3,862,354)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,072,438)PPS LLR Jade: Earned 10,000,000 credits (12,611,947)PSP LLR Turquoise: Earned 5,000,000 credits (6,178,082)SoB LLR Turquoise: Earned 5,000,000 credits (5,396,650)SR5 LLR Turquoise: Earned 5,000,000 credits (8,815,713)SGS LLR Turquoise: Earned 5,000,000 credits (5,290,581)TRP LLR Ruby: Earned 2,000,000 credits (2,137,075)Woodall LLR Ruby: Earned 2,000,000 credits (2,341,684)321 Sieve Sapphire: Earned 20,000,000 credits (26,182,363)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (29,540,183)PPS Sieve Double Bronze: Earned 100,000,000 credits (106,061,773)AP 26/27 Sapphire: Earned 20,000,000 credits (23,251,293)GFN Double Bronze: Earned 100,000,000 credits (118,350,154)PSA Double Bronze: Earned 100,000,000 credits (111,409,691)
Message 139234 - Posted: 1 Apr 2020 | 11:59:55 UTC - in response to Message 139233.
Last modified: 1 Apr 2020 | 12:00:14 UTC

That beat me. Well, I think it means I can process more tasks in a certain amount of time. But 100ms, I don't understand how that correlates with more tasks, 100ms/the time I process one SGS?

Where do you get the 100ms from?

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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139235 - Posted: 1 Apr 2020 | 12:01:31 UTC - in response to Message 139234.
Last modified: 1 Apr 2020 | 12:05:25 UTC

Prime95, after benching 1CPU, 2CPUs, 4CPUs.
1 was slowest, 2 was 100ms faster than 4.

btw 7000 SGS tasks were sent in the first 30sec!
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GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

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Discovered 1 mega primeFound 4 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (4,552,288)Cullen LLR Ruby: Earned 2,000,000 credits (2,726,858)ESP LLR Ruby: Earned 2,000,000 credits (3,862,354)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,072,438)PPS LLR Jade: Earned 10,000,000 credits (12,611,947)PSP LLR Turquoise: Earned 5,000,000 credits (6,178,082)SoB LLR Turquoise: Earned 5,000,000 credits (5,396,650)SR5 LLR Turquoise: Earned 5,000,000 credits (8,815,713)SGS LLR Turquoise: Earned 5,000,000 credits (5,290,581)TRP LLR Ruby: Earned 2,000,000 credits (2,137,075)Woodall LLR Ruby: Earned 2,000,000 credits (2,341,684)321 Sieve Sapphire: Earned 20,000,000 credits (26,182,363)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (29,540,183)PPS Sieve Double Bronze: Earned 100,000,000 credits (106,061,773)AP 26/27 Sapphire: Earned 20,000,000 credits (23,251,293)GFN Double Bronze: Earned 100,000,000 credits (118,350,154)PSA Double Bronze: Earned 100,000,000 credits (111,409,691)
Message 139237 - Posted: 1 Apr 2020 | 12:06:22 UTC - in response to Message 139235.

Prime95, after benching 1CPU, 2CPUs, 4CPUs.
1 was slowest, 2 was 100ms faster than 4.

btw 7000 SGS tasks were sent in the first 30sec!

I think you mean 100iters/s and not ms?

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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139238 - Posted: 1 Apr 2020 | 12:08:36 UTC - in response to Message 139237.
Last modified: 1 Apr 2020 | 12:09:08 UTC

Yes, sorry, rechecked my results file


Ahhhh now I understand how this correlates
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AP 21: 104383195353409757+142406036*23#*n for n=0..20

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ID: 1243718
Credit: 331,241
RAC: 221
SR5 LLR Bronze: Earned 10,000 credits (11,340)SGS LLR Bronze: Earned 10,000 credits (14,129)321 Sieve Bronze: Earned 10,000 credits (30,494)PPS Sieve Bronze: Earned 10,000 credits (77,533)AP 26/27 Bronze: Earned 10,000 credits (24,258)GFN Silver: Earned 100,000 credits (159,507)
Message 139242 - Posted: 1 Apr 2020 | 13:04:47 UTC - in response to Message 139149.

I HAVE COMPLETED 4 TASKS BUT WHY I'M NOT ON TNE STATICS??????????

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Discovered 7 mega primesEliminated 4 conjecture "k"sFound 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2018 Tour de Primes Mountain Stage2019 Tour de Primes largest primeFound 4 primes in the 2019 Tour de PrimesFound 1 mega prime in the 2019 Tour de PrimesFound 1 prime in the 2019 Tour de Primes Mountain StageFound 1 prime in the 2020 Tour de Primes321 LLR Emerald: Earned 50,000,000 credits (53,741,535)Cullen LLR Emerald: Earned 50,000,000 credits (50,296,190)ESP LLR Emerald: Earned 50,000,000 credits (50,853,190)Generalized Cullen/Woodall LLR Emerald: Earned 50,000,000 credits (50,309,119)PPS LLR Double Bronze: Earned 100,000,000 credits (114,063,161)PSP LLR Emerald: Earned 50,000,000 credits (50,563,867)SoB LLR Emerald: Earned 50,000,000 credits (67,865,553)SR5 LLR Double Bronze: Earned 100,000,000 credits (100,726,785)SGS LLR Emerald: Earned 50,000,000 credits (53,154,727)TPS LLR (retired) Bronze: Earned 10,000 credits (43,033)TRP LLR Emerald: Earned 50,000,000 credits (57,441,313)Woodall LLR Emerald: Earned 50,000,000 credits (50,956,094)321 Sieve Double Bronze: Earned 100,000,000 credits (105,071,151)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,142,109)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (50,504,945)PPS Sieve Double Gold: Earned 500,000,000 credits (504,377,255)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,288,222)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,149,354)AP 26/27 Double Silver: Earned 200,000,000 credits (214,118,887)GFN Double Gold: Earned 500,000,000 credits (704,700,220)PSA Double Gold: Earned 500,000,000 credits (535,218,662)
Message 139243 - Posted: 1 Apr 2020 | 13:09:17 UTC

Statistics pages are updated every 15 minutes (IIRC).
Wait couple of minutes and try again.


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Badge score: 1*1 + 5*1 + 8*3 + 9*11 + 10*1 + 11*1 + 12*3 = 186

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ID: 47712
Credit: 56,720,347
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321 LLR Silver: Earned 100,000 credits (309,639)Cullen LLR Gold: Earned 500,000 credits (581,927)ESP LLR Silver: Earned 100,000 credits (294,996)PPS LLR Gold: Earned 500,000 credits (546,770)PSP LLR Silver: Earned 100,000 credits (234,213)SoB LLR Amethyst: Earned 1,000,000 credits (1,389,781)SR5 LLR Silver: Earned 100,000 credits (112,762)SGS LLR Gold: Earned 500,000 credits (614,321)TRP LLR Silver: Earned 100,000 credits (223,118)Woodall LLR Bronze: Earned 10,000 credits (40,158)321 Sieve Silver: Earned 100,000 credits (459,483)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (17,528)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,209,152)PPS Sieve Jade: Earned 10,000,000 credits (17,160,459)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,075,699)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,178,769)AP 26/27 Bronze: Earned 10,000 credits (73,941)GFN Jade: Earned 10,000,000 credits (17,454,313)PSA Gold: Earned 500,000 credits (743,320)
Message 139244 - Posted: 1 Apr 2020 | 13:10:56 UTC - in response to Message 139242.
Last modified: 1 Apr 2020 | 13:20:16 UTC

I HAVE COMPLETED 4 TASKS BUT WHY I'M NOT ON TNE STATICS??????????


You will not show in the stats till your wingman has been completed and your task verified.

Edit: guess that is not the case. Misremembered. Carry on

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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139245 - Posted: 1 Apr 2020 | 13:12:38 UTC - in response to Message 139244.

This is not true, a quorum of 1 (one task) is enough
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SR5 LLR Bronze: Earned 10,000 credits (11,340)SGS LLR Bronze: Earned 10,000 credits (14,129)321 Sieve Bronze: Earned 10,000 credits (30,494)PPS Sieve Bronze: Earned 10,000 credits (77,533)AP 26/27 Bronze: Earned 10,000 credits (24,258)GFN Silver: Earned 100,000 credits (159,507)
Message 139247 - Posted: 1 Apr 2020 | 13:15:09 UTC - in response to Message 139244.

I'VE ALREADY GET THE POINTS!!!!

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Credit: 63,899,132
RAC: 315,112
321 LLR Amethyst: Earned 1,000,000 credits (1,122,393)Cullen LLR Amethyst: Earned 1,000,000 credits (1,190,783)ESP LLR Amethyst: Earned 1,000,000 credits (1,400,801)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,082,600)PPS LLR Amethyst: Earned 1,000,000 credits (1,003,566)PSP LLR Silver: Earned 100,000 credits (189,163)SoB LLR Gold: Earned 500,000 credits (770,086)SR5 LLR Amethyst: Earned 1,000,000 credits (1,054,585)SGS LLR Amethyst: Earned 1,000,000 credits (1,373,163)TRP LLR Amethyst: Earned 1,000,000 credits (1,240,768)Woodall LLR Gold: Earned 500,000 credits (859,086)321 Sieve Amethyst: Earned 1,000,000 credits (1,086,980)PPS Sieve Sapphire: Earned 20,000,000 credits (29,791,223)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (196,262)TRP Sieve (suspended) Silver: Earned 100,000 credits (106,116)AP 26/27 Amethyst: Earned 1,000,000 credits (1,350,362)GFN Sapphire: Earned 20,000,000 credits (20,079,227)
Message 139248 - Posted: 1 Apr 2020 | 13:17:46 UTC - in response to Message 139242.

I HAVE COMPLETED 4 TASKS BUT WHY I'M NOT ON TNE STATICS??????????


From the OP:

Only tasks issued AFTER 1st April 2020 12:00 UTC [...] will be considered for credit.


Looking at your account, it seems that most (if not all) of your completed SGS tasks were issued to you on March 29.

(As a side note, Michael, the end date is listed as being in March in that section of the main post - might want to fix that!)

Profile dannyridel
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Joined: 3 Feb 19
Posts: 399
ID: 1097922
Credit: 1,938,088
RAC: 1,107
321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139249 - Posted: 1 Apr 2020 | 13:18:02 UTC - in response to Message 139247.
Last modified: 1 Apr 2020 | 13:21:13 UTC

Great! PG is a great place to learn to be patient ;) espeacially with slow computers XD
After checking, it seems that you aren't on there, check when you received those tasks, and set work cache in BOINC to 0.
____________
JonDan School Services
GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

Profile Michael GutierrezProject donor
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Project scientist
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Joined: 21 Mar 17
Posts: 40
ID: 764476
Credit: 33,647,851
RAC: 29,995
Found 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesESP LLR Silver: Earned 100,000 credits (398,507)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (604,364)PPS LLR Sapphire: Earned 20,000,000 credits (20,828,707)PSP LLR Amethyst: Earned 1,000,000 credits (1,042,842)SoB LLR Ruby: Earned 2,000,000 credits (2,363,005)SR5 LLR Amethyst: Earned 1,000,000 credits (1,246,270)SGS LLR Gold: Earned 500,000 credits (668,871)TRP LLR Silver: Earned 100,000 credits (191,219)Woodall LLR Amethyst: Earned 1,000,000 credits (1,085,552)321 Sieve Amethyst: Earned 1,000,000 credits (1,311,863)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,085,904)AP 26/27 Silver: Earned 100,000 credits (101,075)GFN Ruby: Earned 2,000,000 credits (2,611,280)PSA Silver: Earned 100,000 credits (108,393)
Message 139250 - Posted: 1 Apr 2020 | 13:22:11 UTC

Two hours down, we've already found NINE primes!

Challenge: Sophie Germain's Birthday
App: 2 (SGS-LLR)
(As of 2020-04-01 13:20:51 UTC)

79211 tasks have been sent out. [CPU/GPU/anonymous_platform: 79183 (100%) / 0 (0%) / 28 (0%)]

Of those tasks that have been sent out:

143 (0%) were aborted. [143 (0%) / 0 (0%) / 0 (0%)]
64 (0%) came back with some kind of an error. [64 (0%) / 0 (0%) / 0 (0%)]
34081 (43%) have returned a successful result. [34065 (43%) / 0 (0%) / 20 (0%)]
44923 (57%) are still in progress. [44915 (57%) / 0 (0%) / 8 (0%)]

Of the tasks that have been returned successfully:

17358 (51%) are pending validation. [17354 (51%) / 0 (0%) / 8 (0%)]
16630 (49%) have been successfully validated. [16618 (49%) / 0 (0%) / 12 (0%)]
40 (0%) were invalid. [40 (0%) / 0 (0%) / 0 (0%)]
53 (0%) are inconclusive. [53 (0%) / 0 (0%) / 0 (0%)]

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is k=5028389327997. The leading edge was at k=5025298185495 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 0.06% as much as it had prior to the challenge!

Profile 3C273
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Joined: 3 Mar 20
Posts: 3
ID: 1243718
Credit: 331,241
RAC: 221
SR5 LLR Bronze: Earned 10,000 credits (11,340)SGS LLR Bronze: Earned 10,000 credits (14,129)321 Sieve Bronze: Earned 10,000 credits (30,494)PPS Sieve Bronze: Earned 10,000 credits (77,533)AP 26/27 Bronze: Earned 10,000 credits (24,258)GFN Silver: Earned 100,000 credits (159,507)
Message 139251 - Posted: 1 Apr 2020 | 13:23:13 UTC - in response to Message 139248.

THANK YOU VER MUCH!

Profile Steve Dodd
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Joined: 1 Oct 10
Posts: 19
ID: 69191
Credit: 434,759,565
RAC: 8,425
321 LLR Ruby: Earned 2,000,000 credits (2,029,716)Cullen LLR Ruby: Earned 2,000,000 credits (2,196,911)ESP LLR Ruby: Earned 2,000,000 credits (2,084,902)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,130,535)PPS LLR Ruby: Earned 2,000,000 credits (2,019,140)PSP LLR Ruby: Earned 2,000,000 credits (2,570,191)SoB LLR Ruby: Earned 2,000,000 credits (3,267,724)SR5 LLR Ruby: Earned 2,000,000 credits (2,150,187)SGS LLR Ruby: Earned 2,000,000 credits (2,000,126)TRP LLR Ruby: Earned 2,000,000 credits (2,203,540)Woodall LLR Ruby: Earned 2,000,000 credits (2,206,098)321 Sieve Ruby: Earned 2,000,000 credits (2,129,115)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,770,881)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,001,578)PPS Sieve Double Silver: Earned 200,000,000 credits (366,397,021)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (534,142)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,036,773)AP 26/27 Ruby: Earned 2,000,000 credits (2,021,500)GFN Sapphire: Earned 20,000,000 credits (21,093,775)PSA Turquoise: Earned 5,000,000 credits (5,915,712)
Message 139260 - Posted: 1 Apr 2020 | 15:00:15 UTC

:( I checked to make sure the issue date was April and i've completed (status valid) ~200, not showing up in stats list. I'm bummed.

Steve

(P.S. OK, I'm not that bummed :) but it would be nice to just show up)
____________

Profile JamesProject donor
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Joined: 19 Sep 14
Posts: 64
ID: 366225
Credit: 470,781,125
RAC: 178,169
Discovered 1 mega primeFound 4 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (4,552,288)Cullen LLR Ruby: Earned 2,000,000 credits (2,726,858)ESP LLR Ruby: Earned 2,000,000 credits (3,862,354)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,072,438)PPS LLR Jade: Earned 10,000,000 credits (12,611,947)PSP LLR Turquoise: Earned 5,000,000 credits (6,178,082)SoB LLR Turquoise: Earned 5,000,000 credits (5,396,650)SR5 LLR Turquoise: Earned 5,000,000 credits (8,815,713)SGS LLR Turquoise: Earned 5,000,000 credits (5,290,581)TRP LLR Ruby: Earned 2,000,000 credits (2,137,075)Woodall LLR Ruby: Earned 2,000,000 credits (2,341,684)321 Sieve Sapphire: Earned 20,000,000 credits (26,182,363)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (29,540,183)PPS Sieve Double Bronze: Earned 100,000,000 credits (106,061,773)AP 26/27 Sapphire: Earned 20,000,000 credits (23,251,293)GFN Double Bronze: Earned 100,000,000 credits (118,350,154)PSA Double Bronze: Earned 100,000,000 credits (111,409,691)
Message 139261 - Posted: 1 Apr 2020 | 15:03:56 UTC - in response to Message 139260.
Last modified: 1 Apr 2020 | 15:04:29 UTC

:( I checked to make sure the issue date was April and i've completed (status valid) ~200, not showing up in stats list. I'm bummed.

Steve

(P.S. OK, I'm not that bummed :) but it would be nice to just show up)

It looks like all the tasks you have returned were issued before 12:00 UTC. The challenge starts at 12:00 UTC (not 00:00 UTC, I know I got confused by that myself).

It looks like you're running with a cache. It might help to set your BOINC cache to 0 days if you don't run projects that have intermittent work and abort all pending SGS tasks that have not started yet.

Profile Steve Dodd
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Joined: 1 Oct 10
Posts: 19
ID: 69191
Credit: 434,759,565
RAC: 8,425
321 LLR Ruby: Earned 2,000,000 credits (2,029,716)Cullen LLR Ruby: Earned 2,000,000 credits (2,196,911)ESP LLR Ruby: Earned 2,000,000 credits (2,084,902)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,130,535)PPS LLR Ruby: Earned 2,000,000 credits (2,019,140)PSP LLR Ruby: Earned 2,000,000 credits (2,570,191)SoB LLR Ruby: Earned 2,000,000 credits (3,267,724)SR5 LLR Ruby: Earned 2,000,000 credits (2,150,187)SGS LLR Ruby: Earned 2,000,000 credits (2,000,126)TRP LLR Ruby: Earned 2,000,000 credits (2,203,540)Woodall LLR Ruby: Earned 2,000,000 credits (2,206,098)321 Sieve Ruby: Earned 2,000,000 credits (2,129,115)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,770,881)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,001,578)PPS Sieve Double Silver: Earned 200,000,000 credits (366,397,021)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (534,142)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,036,773)AP 26/27 Ruby: Earned 2,000,000 credits (2,021,500)GFN Sapphire: Earned 20,000,000 credits (21,093,775)PSA Turquoise: Earned 5,000,000 credits (5,915,712)
Message 139265 - Posted: 1 Apr 2020 | 15:37:20 UTC - in response to Message 139261.

OK. I did get confused on the 12:00 UTC. Bummer. Thanks for the reply :)
____________

TheCruelLogician
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Joined: 24 May 18
Posts: 127
ID: 1019105
Credit: 49,116,593
RAC: 46
Found 1 prime in the 2019 Tour de Primes321 LLR Bronze: Earned 10,000 credits (15,725)Cullen LLR Bronze: Earned 10,000 credits (34,191)ESP LLR Amethyst: Earned 1,000,000 credits (1,069,462)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (651,908)PPS LLR Jade: Earned 10,000,000 credits (10,741,346)PSP LLR Bronze: Earned 10,000 credits (25,763)SoB LLR Amethyst: Earned 1,000,000 credits (1,529,599)SR5 LLR Silver: Earned 100,000 credits (278,040)SGS LLR Gold: Earned 500,000 credits (855,507)TRP LLR Gold: Earned 500,000 credits (565,318)Woodall LLR Bronze: Earned 10,000 credits (18,231)321 Sieve Silver: Earned 100,000 credits (128,076)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,366,124)PPS Sieve Jade: Earned 10,000,000 credits (13,834,584)AP 26/27 Jade: Earned 10,000,000 credits (10,188,360)GFN Turquoise: Earned 5,000,000 credits (6,814,357)
Message 139273 - Posted: 1 Apr 2020 | 16:50:14 UTC

My nine month dry spell is over. :)
____________
Historian by education, philosopher by inclination, contrarian by nature.


Profile Chooka
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Joined: 15 May 18
Posts: 109
ID: 1014486
Credit: 98,066,927
RAC: 196
Found 1 prime in the 2019 Tour de PrimesFound 5 primes in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (729,188)Cullen LLR Gold: Earned 500,000 credits (536,353)ESP LLR Gold: Earned 500,000 credits (521,539)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (519,336)PPS LLR Turquoise: Earned 5,000,000 credits (6,650,617)PSP LLR Gold: Earned 500,000 credits (545,010)SoB LLR Gold: Earned 500,000 credits (784,120)SR5 LLR Ruby: Earned 2,000,000 credits (2,081,611)SGS LLR Amethyst: Earned 1,000,000 credits (1,408,150)TRP LLR Gold: Earned 500,000 credits (526,734)Woodall LLR Gold: Earned 500,000 credits (539,481)321 Sieve Gold: Earned 500,000 credits (590,369)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,057,633)PPS Sieve Emerald: Earned 50,000,000 credits (57,296,887)AP 26/27 Ruby: Earned 2,000,000 credits (2,919,046)GFN Jade: Earned 10,000,000 credits (16,360,852)
Message 139279 - Posted: 1 Apr 2020 | 19:52:04 UTC

I'm crunching 4 * 4 on my 16 core machines. Even with that my 1st% is only 53%.
The old throughput vs 1st conundrum. :D

My 1950X is significantly quicker than my 3950X.
Same settings on both PC's but 855 tasks vs 678 in the last 24hrs. Seems strange....but whatever.
Perhaps its to do with the memory usage on the 1950X? No idea.


____________

Profile ArtistProject donor
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Joined: 29 Sep 08
Posts: 74
ID: 29825
Credit: 231,471,828
RAC: 116,547
Discovered 2 mega primesEliminated 1 conjecture "k"Found 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (8,383,016)Cullen LLR Turquoise: Earned 5,000,000 credits (6,893,213)ESP LLR Jade: Earned 10,000,000 credits (10,111,837)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,721,272)PPS LLR Jade: Earned 10,000,000 credits (10,156,811)PSP LLR Jade: Earned 10,000,000 credits (11,541,280)SoB LLR Jade: Earned 10,000,000 credits (10,236,677)SR5 LLR Jade: Earned 10,000,000 credits (13,149,026)SGS LLR Turquoise: Earned 5,000,000 credits (7,754,358)TRP LLR Jade: Earned 10,000,000 credits (10,100,692)Woodall LLR Turquoise: Earned 5,000,000 credits (8,107,005)321 Sieve Sapphire: Earned 20,000,000 credits (20,094,460)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,010,551)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,069,226)PPS Sieve Sapphire: Earned 20,000,000 credits (20,030,698)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,001,111)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,014,179)AP 26/27 Sapphire: Earned 20,000,000 credits (20,065,551)GFN Sapphire: Earned 20,000,000 credits (23,768,167)PSA Sapphire: Earned 20,000,000 credits (20,262,849)
Message 139283 - Posted: 1 Apr 2020 | 20:47:17 UTC - in response to Message 139279.

I'm crunching 4 * 4 on my 16 core machines.


Try 16 tasks one thread. MT is not a good idea for SGS.
____________
144052 *5^2018290+1 is Prime!

waffleironhead
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Joined: 1 Oct 09
Posts: 30
ID: 47712
Credit: 56,720,347
RAC: 9,159
321 LLR Silver: Earned 100,000 credits (309,639)Cullen LLR Gold: Earned 500,000 credits (581,927)ESP LLR Silver: Earned 100,000 credits (294,996)PPS LLR Gold: Earned 500,000 credits (546,770)PSP LLR Silver: Earned 100,000 credits (234,213)SoB LLR Amethyst: Earned 1,000,000 credits (1,389,781)SR5 LLR Silver: Earned 100,000 credits (112,762)SGS LLR Gold: Earned 500,000 credits (614,321)TRP LLR Silver: Earned 100,000 credits (223,118)Woodall LLR Bronze: Earned 10,000 credits (40,158)321 Sieve Silver: Earned 100,000 credits (459,483)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (17,528)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,209,152)PPS Sieve Jade: Earned 10,000,000 credits (17,160,459)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,075,699)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,178,769)AP 26/27 Bronze: Earned 10,000 credits (73,941)GFN Jade: Earned 10,000,000 credits (17,454,313)PSA Gold: Earned 500,000 credits (743,320)
Message 139284 - Posted: 1 Apr 2020 | 21:32:12 UTC - in response to Message 139283.

I'm crunching 4 * 4 on my 16 core machines.


Try 16 tasks one thread. MT is not a good idea for SGS.


I disagree, on my 2400g system 4 core/8 thread, my best results are from doing 2 units at a time using 4 threads each.

Profile Michael GoetzProject donor
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Joined: 21 Jan 10
Posts: 13221
ID: 53948
Credit: 218,268,195
RAC: 6,039
The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Turquoise: Earned 5,000,000 credits (5,009,577)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (12,843,762)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (2,276,011)TRP LLR Ruby: Earned 2,000,000 credits (2,737,347)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Turquoise: Earned 5,000,000 credits (9,403,740)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (20,114,159)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,114,260)GFN Emerald: Earned 50,000,000 credits (72,383,585)PSA Jade: Earned 10,000,000 credits (12,404,447)
Message 139287 - Posted: 2 Apr 2020 | 0:00:39 UTC

File this under TANSTAAFL -- There Ain't No Such Thing As A Free Lunch.

Also file this under "Be careful what you wish for. You might get it."

We're testing SGS candidates at a furious rate. Absolutely unprecedented. That's the good news.

The bad news is we're only half a day in and we're already seeing the leaderboard generation take more than 15 minutes. That's a problem when it's scheduled to run every 15 minutes.

As of right now, it's only going to run once an hour. I expect this won't last very long, however. By the end of the challenge it may be running even less frequently. In fact, I can all but guarantee that we won't be able to create the leaderboards every hour for the length of the challenge.

____________
My lucky number is 75898524288+1
(I am NOT an administrator anymore, so please don't PM me with questions. I can't help.)

Profile Rick Reynolds
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Joined: 13 Aug 10
Posts: 7650
ID: 65483
Credit: 5,026,275,673
RAC: 575,381
Discovered 2 mega primesFound 2 primes in the 2018 Tour de PrimesFound 2 primes in the 2019 Tour de PrimesFound 12 primes in the 2020 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,076,824)Cullen LLR Turquoise: Earned 5,000,000 credits (5,287,148)ESP LLR Turquoise: Earned 5,000,000 credits (5,174,327)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,028,260)PPS LLR Sapphire: Earned 20,000,000 credits (38,620,190)PSP LLR Turquoise: Earned 5,000,000 credits (5,151,448)SoB LLR Turquoise: Earned 5,000,000 credits (5,014,268)SR5 LLR Jade: Earned 10,000,000 credits (14,871,275)SGS LLR Turquoise: Earned 5,000,000 credits (7,860,522)TRP LLR Turquoise: Earned 5,000,000 credits (6,568,836)Woodall LLR Turquoise: Earned 5,000,000 credits (5,036,418)321 Sieve Emerald: Earned 50,000,000 credits (96,259,681)Cullen/Woodall Sieve (suspended) Double Bronze: Earned 100,000,000 credits (127,922,665)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (30,984,158)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,761,079,363)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,134,964)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,013,696)AP 26/27 Double Silver: Earned 200,000,000 credits (276,723,135)GFN Double Silver: Earned 200,000,000 credits (243,780,856)PSA Double Amethyst: Earned 1,000,000,000 credits (1,370,700,486)
Message 139289 - Posted: 2 Apr 2020 | 0:13:20 UTC - in response to Message 139287.

File this under TANSTAAFL -- There Ain't No Such Thing As A Free Lunch.

Also file this under "Be careful what you wish for. You might get it."

We're testing SGS candidates at a furious rate. Absolutely unprecedented. That's the good news.

The bad news is we're only half a day in and we're already seeing the leaderboard generation take more than 15 minutes. That's a problem when it's scheduled to run every 15 minutes.

As of right now, it's only going to run once an hour. I expect this won't last very long, however. By the end of the challenge it may be running even less frequently. In fact, I can all but guarantee that we won't be able to create the leaderboards every hour for the length of the challenge.

Can you turn off other stuff like firsts reporting? Just asking. I would rather have results posted than my first percentage.

Sellyme
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Credit: 63,899,132
RAC: 315,112
321 LLR Amethyst: Earned 1,000,000 credits (1,122,393)Cullen LLR Amethyst: Earned 1,000,000 credits (1,190,783)ESP LLR Amethyst: Earned 1,000,000 credits (1,400,801)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,082,600)PPS LLR Amethyst: Earned 1,000,000 credits (1,003,566)PSP LLR Silver: Earned 100,000 credits (189,163)SoB LLR Gold: Earned 500,000 credits (770,086)SR5 LLR Amethyst: Earned 1,000,000 credits (1,054,585)SGS LLR Amethyst: Earned 1,000,000 credits (1,373,163)TRP LLR Amethyst: Earned 1,000,000 credits (1,240,768)Woodall LLR Gold: Earned 500,000 credits (859,086)321 Sieve Amethyst: Earned 1,000,000 credits (1,086,980)PPS Sieve Sapphire: Earned 20,000,000 credits (29,791,223)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (196,262)TRP Sieve (suspended) Silver: Earned 100,000 credits (106,116)AP 26/27 Amethyst: Earned 1,000,000 credits (1,350,362)GFN Sapphire: Earned 20,000,000 credits (20,079,227)
Message 139293 - Posted: 2 Apr 2020 | 3:29:23 UTC

Would performance increase at all if credits on the stats page weren't calculated at all until the end, and it was just sorted by the number of tasks returned? As far as I'm aware every SGS task is worth exactly the same number of credits unless you find a prime, and that's uncommon enough that just sorting by tasks should be a good enough idea of what's going on.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de Primes321 LLR Gold: Earned 500,000 credits (501,251)Cullen LLR Gold: Earned 500,000 credits (507,205)ESP LLR Gold: Earned 500,000 credits (504,771)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (500,544)PPS LLR Gold: Earned 500,000 credits (500,330)PSP LLR Gold: Earned 500,000 credits (530,606)SoB LLR Gold: Earned 500,000 credits (507,131)SR5 LLR Silver: Earned 100,000 credits (215,403)SGS LLR Gold: Earned 500,000 credits (500,037)TRP LLR Silver: Earned 100,000 credits (112,730)Woodall LLR Silver: Earned 100,000 credits (228,485)321 Sieve Silver: Earned 100,000 credits (100,021)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,420)PPS Sieve Sapphire: Earned 20,000,000 credits (20,579,955)AP 26/27 Jade: Earned 10,000,000 credits (19,968,377)GFN Sapphire: Earned 20,000,000 credits (20,983,160)PSA Sapphire: Earned 20,000,000 credits (20,070,245)
Message 139296 - Posted: 2 Apr 2020 | 4:11:53 UTC - in response to Message 139293.

Would performance increase at all if credits on the stats page weren't calculated at all until the end, and it was just sorted by the number of tasks returned? As far as I'm aware every SGS task is worth exactly the same number of credits unless you find a prime, and that's uncommon enough that just sorting by tasks should be a good enough idea of what's going on.


That's a nice idea, but after some Googling and looking at the source code, it probably wouldn't make much of a difference. The only time it would save is a few log10 calls, and Google says log10 is O(log log n), so it wouldn't make much of a difference. It seems like the main bottleneck is the millions of results in the database. We also REALLY don't want to break something in the middle of a challenge.

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Found 3 primes in the 2020 Tour de Primes321 LLR Amethyst: Earned 1,000,000 credits (1,063,954)Cullen LLR Amethyst: Earned 1,000,000 credits (1,041,705)ESP LLR Turquoise: Earned 5,000,000 credits (5,192,769)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,319,313)PPS LLR Jade: Earned 10,000,000 credits (10,308,922)PSP LLR Ruby: Earned 2,000,000 credits (2,012,651)SoB LLR Amethyst: Earned 1,000,000 credits (1,064,898)SR5 LLR Ruby: Earned 2,000,000 credits (2,085,475)SGS LLR Amethyst: Earned 1,000,000 credits (1,320,684)TRP LLR Amethyst: Earned 1,000,000 credits (1,026,807)Woodall LLR Amethyst: Earned 1,000,000 credits (1,042,977)321 Sieve Turquoise: Earned 5,000,000 credits (5,235,253)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,911,344)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,077,092)PPS Sieve Emerald: Earned 50,000,000 credits (50,200,870)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,034,014)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,774)AP 26/27 Turquoise: Earned 5,000,000 credits (5,042,439)GFN Sapphire: Earned 20,000,000 credits (23,536,616)PSA Emerald: Earned 50,000,000 credits (52,865,231)
Message 139298 - Posted: 2 Apr 2020 | 5:16:52 UTC - in response to Message 139287.

File this under TANSTAAFL -- There Ain't No Such Thing As A Free Lunch.

Also file this under "Be careful what you wish for. You might get it."

We're testing SGS candidates at a furious rate. Absolutely unprecedented. That's the good news.

The bad news is we're only half a day in and we're already seeing the leaderboard generation take more than 15 minutes. That's a problem when it's scheduled to run every 15 minutes.

As of right now, it's only going to run once an hour. I expect this won't last very long, however. By the end of the challenge it may be running even less frequently. In fact, I can all but guarantee that we won't be able to create the leaderboards every hour for the length of the challenge.

This reminds me of the early days where PPSE challenges would nearly take down the servers.
____________

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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Turquoise: Earned 5,000,000 credits (5,009,577)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (12,843,762)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,291,181)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (2,276,011)TRP LLR Ruby: Earned 2,000,000 credits (2,737,347)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Turquoise: Earned 5,000,000 credits (9,403,740)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (20,114,159)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,114,260)GFN Emerald: Earned 50,000,000 credits (72,383,585)PSA Jade: Earned 10,000,000 credits (12,404,447)
Message 139300 - Posted: 2 Apr 2020 | 8:28:44 UTC - in response to Message 139298.

This reminds me of the early days where PPSE challenges would nearly take down the servers.


Yeah, me too. :(


____________
My lucky number is 75898524288+1
(I am NOT an administrator anymore, so please don't PM me with questions. I can't help.)

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Discovered 1 mega primeFound 4 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (4,552,288)Cullen LLR Ruby: Earned 2,000,000 credits (2,726,858)ESP LLR Ruby: Earned 2,000,000 credits (3,862,354)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,072,438)PPS LLR Jade: Earned 10,000,000 credits (12,611,947)PSP LLR Turquoise: Earned 5,000,000 credits (6,178,082)SoB LLR Turquoise: Earned 5,000,000 credits (5,396,650)SR5 LLR Turquoise: Earned 5,000,000 credits (8,815,713)SGS LLR Turquoise: Earned 5,000,000 credits (5,290,581)TRP LLR Ruby: Earned 2,000,000 credits (2,137,075)Woodall LLR Ruby: Earned 2,000,000 credits (2,341,684)321 Sieve Sapphire: Earned 20,000,000 credits (26,182,363)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (29,540,183)PPS Sieve Double Bronze: Earned 100,000,000 credits (106,061,773)AP 26/27 Sapphire: Earned 20,000,000 credits (23,251,293)GFN Double Bronze: Earned 100,000,000 credits (118,350,154)PSA Double Bronze: Earned 100,000,000 credits (111,409,691)
Message 139301 - Posted: 2 Apr 2020 | 8:30:01 UTC - in response to Message 139289.
Last modified: 2 Apr 2020 | 9:24:24 UTC

File this under TANSTAAFL -- There Ain't No Such Thing As A Free Lunch.

Also file this under "Be careful what you wish for. You might get it."

We're testing SGS candidates at a furious rate. Absolutely unprecedented. That's the good news.

The bad news is we're only half a day in and we're already seeing the leaderboard generation take more than 15 minutes. That's a problem when it's scheduled to run every 15 minutes.

As of right now, it's only going to run once an hour. I expect this won't last very long, however. By the end of the challenge it may be running even less frequently. In fact, I can all but guarantee that we won't be able to create the leaderboards every hour for the length of the challenge.

Can you turn off other stuff like firsts reporting? Just asking. I would rather have results posted than my first percentage.

That stuff on your home page is pretty light compared to the leaderboards generation code. Jim and Mike took a look at the code and it wasn't pretty. We're currently looking at 43 minutes to update the leaderboards. We will soon have to slow down the leaderboards generation rate again soon enough.

Another thing: the rate at which SGS tasks are being processed is getting faster as the challenge goes (good news!), but that also means it's ever more taxing for the server (slightly less good news).



Update on the challenge itself: 30 primes were found since the beginning of the challenge!

(As of 2020-04-02 08:23:22 UTC)

945522 tasks have been sent out. [CPU/GPU/anonymous_platform: 945110 (100%) / 0 (0%) / 412 (0%)]

Of those tasks that have been sent out:

1959 (0%) were aborted. [1959 (0%) / 0 (0%) / 0 (0%)]
815 (0%) came back with some kind of an error. [815 (0%) / 0 (0%) / 0 (0%)]
839151 (89%) have returned a successful result. [838794 (89%) / 0 (0%) / 404 (0%)]
103778 (11%) are still in progress. [103785 (11%) / 0 (0%) / 8 (0%)]

Of the tasks that have been returned successfully:

82527 (10%) are pending validation. [82529 (10%) / 0 (0%) / 45 (0%)]
754806 (90%) have been successfully validated. [754447 (90%) / 0 (0%) / 359 (0%)]
1553 (0%) were invalid. [1553 (0%) / 0 (0%) / 0 (0%)]
265 (0%) are inconclusive. [265 (0%) / 0 (0%) / 0 (0%)]

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is k=5063112050817. The leading edge was at k=5025298185495 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 0.75% as much as it had prior to the challenge!

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ESP LLR Gold: Earned 500,000 credits (636,842)PPS LLR Silver: Earned 100,000 credits (105,306)SR5 LLR Silver: Earned 100,000 credits (177,792)SGS LLR Silver: Earned 100,000 credits (309,609)321 Sieve Ruby: Earned 2,000,000 credits (2,105,323)
Message 139303 - Posted: 2 Apr 2020 | 10:00:17 UTC - in response to Message 139301.

Update on the challenge itself: 30 primes were found since the beginning of the challenge!
If I got it right, a prime p is only a SG prime, if 2p + 1 is also prime. Were any of the 30 primes SG primes?


And regarding optimization, it said in this thread to switch HT on and set CPU to 50%. Does that mean number of simultaneous tasks in the preferences should be set to 1/2 # of cores?

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Credit: 1,938,088
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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139305 - Posted: 2 Apr 2020 | 11:12:50 UTC - in response to Message 139303.

SG primes are very very rare, and the last one was found in 2016, so... you get the message.
It's definitely not recommended to switch HT on, but if you can't switch it off, setting CPU to 50% is the best way and your assumption is correct if I remember everything correctly.
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Bur
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Credit: 3,334,753
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ESP LLR Gold: Earned 500,000 credits (636,842)PPS LLR Silver: Earned 100,000 credits (105,306)SR5 LLR Silver: Earned 100,000 credits (177,792)SGS LLR Silver: Earned 100,000 credits (309,609)321 Sieve Ruby: Earned 2,000,000 credits (2,105,323)
Message 139307 - Posted: 2 Apr 2020 | 11:26:57 UTC - in response to Message 139305.

Ok, thanks. I'd rather not diable HT because I assume it's useful in most cases other than primegrid crunching?

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321 LLR Silver: Earned 100,000 credits (106,389)PPS LLR Gold: Earned 500,000 credits (866,793)SR5 LLR Silver: Earned 100,000 credits (105,157)SGS LLR Silver: Earned 100,000 credits (139,857)TRP LLR Silver: Earned 100,000 credits (105,612)321 Sieve Gold: Earned 500,000 credits (512,303)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (503,510)PPS Sieve Amethyst: Earned 1,000,000 credits (1,577,628)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (34,269)TRP Sieve (suspended) Bronze: Earned 10,000 credits (32,679)AP 26/27 Silver: Earned 100,000 credits (117,247)GFN Gold: Earned 500,000 credits (500,739)PSA Silver: Earned 100,000 credits (140,044)
Message 139309 - Posted: 2 Apr 2020 | 11:53:23 UTC

1.03 million tasks completed in the last 24 hours according to the task status graphs page! Incredible numbers!
____________
8915 × 2 ^ 1507177 + 1 -- 453,710 digit PPSE
6603 × 2 ^ 1411654 + 1 -- 424,955 digit PPSE (DC)

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Discovered 1 mega primeFound 4 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (4,552,288)Cullen LLR Ruby: Earned 2,000,000 credits (2,726,858)ESP LLR Ruby: Earned 2,000,000 credits (3,862,354)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,072,438)PPS LLR Jade: Earned 10,000,000 credits (12,611,947)PSP LLR Turquoise: Earned 5,000,000 credits (6,178,082)SoB LLR Turquoise: Earned 5,000,000 credits (5,396,650)SR5 LLR Turquoise: Earned 5,000,000 credits (8,815,713)SGS LLR Turquoise: Earned 5,000,000 credits (5,290,581)TRP LLR Ruby: Earned 2,000,000 credits (2,137,075)Woodall LLR Ruby: Earned 2,000,000 credits (2,341,684)321 Sieve Sapphire: Earned 20,000,000 credits (26,182,363)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (29,540,183)PPS Sieve Double Bronze: Earned 100,000,000 credits (106,061,773)AP 26/27 Sapphire: Earned 20,000,000 credits (23,251,293)GFN Double Bronze: Earned 100,000,000 credits (118,350,154)PSA Double Bronze: Earned 100,000,000 credits (111,409,691)
Message 139310 - Posted: 2 Apr 2020 | 12:10:32 UTC - in response to Message 139307.
Last modified: 2 Apr 2020 | 12:12:11 UTC

If I got it right, a prime p is only a SG prime, if 2p + 1 is also prime. Were any of the 30 primes SG primes?

None of the 30 primes were SG primes. As Danny has mentioned, they are extremely rare.

Ok, thanks. I'd rather not diable HT because I assume it's useful in most cases other than primegrid crunching?

That's right, or at least it does not hurt in most other cases. Leaving HT on and using 50% CPU is almost the same that it shouldn't matter too much, as long as you don't run more tasks than the number of cores you have.
This is a setting you'll want to change in your BOINC client and not on the website. You usually want to leave your website preference to "No Limit", unless you know what you're trying to do.


Does that mean number of simultaneous tasks in the preferences should be set to 1/2 # of cores?

You want to use as many cores as you actually have on the CPU. Under Windows 8 and later, task manager should tell you how many actual cores you have (see image below). In my case, my CPU has 8 actual cores and no hyperthreads. For a CPU like an i3 2120, it has 2 actual cores and 4 hyperthreads. You'd want to only use 2. The throughput will stay the same or even increase, while at the same time the CPU will consume less power and stay cooler.

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Credit: 1,938,088
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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139314 - Posted: 2 Apr 2020 | 12:58:11 UTC - in response to Message 139310.

ILW8, how did you get that cool color into the winodws?
____________
JonDan School Services
GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

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Joined: 19 Sep 14
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Credit: 470,781,125
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Discovered 1 mega primeFound 4 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (4,552,288)Cullen LLR Ruby: Earned 2,000,000 credits (2,726,858)ESP LLR Ruby: Earned 2,000,000 credits (3,862,354)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,072,438)PPS LLR Jade: Earned 10,000,000 credits (12,611,947)PSP LLR Turquoise: Earned 5,000,000 credits (6,178,082)SoB LLR Turquoise: Earned 5,000,000 credits (5,396,650)SR5 LLR Turquoise: Earned 5,000,000 credits (8,815,713)SGS LLR Turquoise: Earned 5,000,000 credits (5,290,581)TRP LLR Ruby: Earned 2,000,000 credits (2,137,075)Woodall LLR Ruby: Earned 2,000,000 credits (2,341,684)321 Sieve Sapphire: Earned 20,000,000 credits (26,182,363)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (29,540,183)PPS Sieve Double Bronze: Earned 100,000,000 credits (106,061,773)AP 26/27 Sapphire: Earned 20,000,000 credits (23,251,293)GFN Double Bronze: Earned 100,000,000 credits (118,350,154)PSA Double Bronze: Earned 100,000,000 credits (111,409,691)
Message 139319 - Posted: 2 Apr 2020 | 13:58:00 UTC - in response to Message 139314.

ILW8, how did you get that cool color into the winodws?

Just Windows' customization. Didn't touch BOINC at all.

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ID: 76278
Credit: 416,089,341
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PPS LLR Ruby: Earned 2,000,000 credits (3,534,535)SR5 LLR Gold: Earned 500,000 credits (637,227)SGS LLR Amethyst: Earned 1,000,000 credits (1,456,361)Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (986,437)PPS Sieve Double Silver: Earned 200,000,000 credits (400,384,644)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (303,121)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,076,908)GFN Ruby: Earned 2,000,000 credits (2,704,750)
Message 139322 - Posted: 2 Apr 2020 | 15:08:15 UTC

My old V8-Xeon works with 16 Tasks at once. CPUs are cool with 45 grd C
See me not in statistic till now
regards to all
_heinz
____________

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Found 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesESP LLR Silver: Earned 100,000 credits (398,507)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (604,364)PPS LLR Sapphire: Earned 20,000,000 credits (20,828,707)PSP LLR Amethyst: Earned 1,000,000 credits (1,042,842)SoB LLR Ruby: Earned 2,000,000 credits (2,363,005)SR5 LLR Amethyst: Earned 1,000,000 credits (1,246,270)SGS LLR Gold: Earned 500,000 credits (668,871)TRP LLR Silver: Earned 100,000 credits (191,219)Woodall LLR Amethyst: Earned 1,000,000 credits (1,085,552)321 Sieve Amethyst: Earned 1,000,000 credits (1,311,863)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,085,904)AP 26/27 Silver: Earned 100,000 credits (101,075)GFN Ruby: Earned 2,000,000 credits (2,611,280)PSA Silver: Earned 100,000 credits (108,393)
Message 139323 - Posted: 2 Apr 2020 | 15:10:00 UTC

One day, THIRTY-SIX primes down!

Challenge: Sophie Germain's Birthday
App: 2 (SGS-LLR)
(As of 2020-04-02 15:08:11 UTC)

1281124 tasks have been sent out. [CPU/GPU/anonymous_platform: 1280592 (100%) / 0 (0%) / 532 (0%)]

Of those tasks that have been sent out:

6063 (0%) were aborted. [6063 (0%) / 0 (0%) / 0 (0%)]
1358 (0%) came back with some kind of an error. [1358 (0%) / 0 (0%) / 0 (0%)]
1168557 (91%) have returned a successful result. [1168349 (91%) / 0 (0%) / 528 (0%)]
105363 (8%) are still in progress. [105218 (8%) / 0 (0%) / 4 (0%)]

Of the tasks that have been returned successfully:

84881 (7%) are pending validation. [85152 (7%) / 0 (0%) / 49 (0%)]
1081311 (93%) have been successfully validated. [1080832 (92%) / 0 (0%) / 479 (0%)]
2097 (0%) were invalid. [2097 (0%) / 0 (0%) / 0 (0%)]
268 (0%) are inconclusive. [268 (0%) / 0 (0%) / 0 (0%)]

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is k=5076469071957. The leading edge was at k=5025298185495 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 1.02% as much as it had prior to the challenge!

lashrasch
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Posts: 31
ID: 15484
Credit: 60,732,495
RAC: 561,257
321 LLR Bronze: Earned 10,000 credits (45,683)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (49,934)PPS LLR Silver: Earned 100,000 credits (490,210)PSP LLR Gold: Earned 500,000 credits (533,679)SR5 LLR Ruby: Earned 2,000,000 credits (4,371,912)SGS LLR Amethyst: Earned 1,000,000 credits (1,910,143)321 Sieve Gold: Earned 500,000 credits (696,489)PPS Sieve Jade: Earned 10,000,000 credits (19,430,444)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,657)AP 26/27 Jade: Earned 10,000,000 credits (19,414,486)GFN Jade: Earned 10,000,000 credits (13,774,858)
Message 139342 - Posted: 2 Apr 2020 | 22:25:28 UTC - in response to Message 139323.
Last modified: 2 Apr 2020 | 22:26:26 UTC

My task manager s not showing any activity on my GPUs and only 60% on my CPU. whats going on? My Boinc is set to 50%. How can i post a screenshot?

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Discovered the World's First AP27!!!Discovered 9 mega primesDiscovered 1 AP272018 Tour de Primes largest primeFound 4 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,910,214)Cullen LLR Jade: Earned 10,000,000 credits (17,346,882)ESP LLR Turquoise: Earned 5,000,000 credits (6,404,450)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,466,498)PPS LLR Sapphire: Earned 20,000,000 credits (44,433,561)PSP LLR Turquoise: Earned 5,000,000 credits (7,758,266)SoB LLR Sapphire: Earned 20,000,000 credits (36,287,070)SR5 LLR Turquoise: Earned 5,000,000 credits (8,227,593)SGS LLR Turquoise: Earned 5,000,000 credits (5,177,463)TRP LLR Sapphire: Earned 20,000,000 credits (26,311,351)Woodall LLR Turquoise: Earned 5,000,000 credits (5,062,771)321 Sieve Turquoise: Earned 5,000,000 credits (7,116,748)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,892,369)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,515,338)PPS Sieve Double Gold: Earned 500,000,000 credits (792,491,761)TRP Sieve (suspended) Silver: Earned 100,000 credits (121,416)AP 26/27 Emerald: Earned 50,000,000 credits (87,324,757)GFN Double Ruby: Earned 2,000,000,000 credits (3,064,168,577)
Message 139343 - Posted: 2 Apr 2020 | 22:58:17 UTC - in response to Message 139342.

My task manager s not showing any activity on my GPUs and only 60% on my CPU. whats going on? My Boinc is set to 50%. How can i post a screenshot?


Windows task manager is useless at reporting gpu usage. Use gpu-z to monitor GPU usage. Cpu 60%? No idea sorry.
____________
My lucky numbers 10590941048576+1 and 181457032297751865536+1

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Joined: 25 Nov 09
Posts: 2889
ID: 50683
Credit: 55,710,613
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Eliminated 1 conjecture "k"Found 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Silver: Earned 100,000 credits (229,492)Cullen LLR Silver: Earned 100,000 credits (110,733)PPS LLR Turquoise: Earned 5,000,000 credits (5,561,881)PSP LLR Silver: Earned 100,000 credits (104,385)SoB LLR Silver: Earned 100,000 credits (106,117)SR5 LLR Silver: Earned 100,000 credits (139,802)SGS LLR Amethyst: Earned 1,000,000 credits (1,323,052)TRP LLR Silver: Earned 100,000 credits (122,712)Woodall LLR Silver: Earned 100,000 credits (122,944)321 Sieve Silver: Earned 100,000 credits (104,900)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,599)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (515,556)PPS Sieve Jade: Earned 10,000,000 credits (11,593,037)TRP Sieve (suspended) Silver: Earned 100,000 credits (255,612)AP 26/27 Ruby: Earned 2,000,000 credits (2,579,917)GFN Sapphire: Earned 20,000,000 credits (23,317,763)PSA Turquoise: Earned 5,000,000 credits (7,522,050)
Message 139346 - Posted: 2 Apr 2020 | 23:37:23 UTC - in response to Message 139342.

My task manager s not showing any activity on my GPUs and only 60% on my CPU. whats going on? My Boinc is set to 50%. How can i post a screenshot?


Dont use GPU-z it give trouble many of computer users.
Take HWinfo...
____________
314187728^131072+1 GENERALIZED FERMAT :)
93*10^1029523-1 REPDIGIT PRIME
31*332^367560+1 CRUS PRIME
Proud member of team Aggie The Pew. Go Aggie!

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ID: 1097922
Credit: 1,938,088
RAC: 1,107
321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139351 - Posted: 3 Apr 2020 | 2:37:00 UTC - in response to Message 139346.
Last modified: 3 Apr 2020 | 2:37:37 UTC

Windows task manager is useless at reporting gpu usage. Use gpu-z to monitor GPU usage. Cpu 60%? No idea sorry.


Task Manager, as I've said before, can report GPU usage when you go to "Compute 1" or "Compute 0".
Same for CPU--no idea. Did you mean you think its load is too low or too high?

How to post a screenshot?


Either go to discord (not recommended for too many screenshots) or post a pic on your own website and use the "img" tag with the URL for the pic.
____________
JonDan School Services
GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

lashrasch
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Joined: 30 Nov 07
Posts: 31
ID: 15484
Credit: 60,732,495
RAC: 561,257
321 LLR Bronze: Earned 10,000 credits (45,683)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (49,934)PPS LLR Silver: Earned 100,000 credits (490,210)PSP LLR Gold: Earned 500,000 credits (533,679)SR5 LLR Ruby: Earned 2,000,000 credits (4,371,912)SGS LLR Amethyst: Earned 1,000,000 credits (1,910,143)321 Sieve Gold: Earned 500,000 credits (696,489)PPS Sieve Jade: Earned 10,000,000 credits (19,430,444)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,657)AP 26/27 Jade: Earned 10,000,000 credits (19,414,486)GFN Jade: Earned 10,000,000 credits (13,774,858)
Message 139353 - Posted: 3 Apr 2020 | 6:30:12 UTC - in response to Message 139351.

Windows task manager is useless at reporting gpu usage. Use gpu-z to monitor GPU usage. Cpu 60%? No idea sorry.


Task Manager, as I've said before, can report GPU usage when you go to "Compute 1" or "Compute 0".
Same for CPU--no idea. Did you mean you think its load is too low or too high?

How to post a screenshot?


Either go to discord (not recommended for too many screenshots) or post a pic on your own website and use the "img" tag with the URL for the pic.



Hmm, well, I assumed my CPU load would be 100%, given that I have all cores running primegrid.

...And I cant find anything called Compute 0 or Compute 1 in task manager, so ill just use gpu-z or HWinfo.

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ID: 1097922
Credit: 1,938,088
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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139354 - Posted: 3 Apr 2020 | 8:49:06 UTC - in response to Message 139353.

About Compute 1, go to performance>GPU>and you see four small graphs
Click on the caption of any of them and switch it for compute 1.
____________
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GFN-14: 50103906^16384+1
AP 21: 104383195353409757+142406036*23#*n for n=0..20

Bur
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Posts: 28
ID: 1241833
Credit: 3,334,753
RAC: 32,899
ESP LLR Gold: Earned 500,000 credits (636,842)PPS LLR Silver: Earned 100,000 credits (105,306)SR5 LLR Silver: Earned 100,000 credits (177,792)SGS LLR Silver: Earned 100,000 credits (309,609)321 Sieve Ruby: Earned 2,000,000 credits (2,105,323)
Message 139355 - Posted: 3 Apr 2020 | 9:56:14 UTC

Setting the number of simultaneous tasks to the number of physical cores slowed down things for me. 4 simultaneous WUs took 33-34 min each, 2 WUs were 19 min each.

So in total it resulted in less WU/t.

I didn't run the 50% test for long, 6 or so WUs were finished, but it seems like this is not always the optimal setting?

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Discovered 1 mega primeFound 4 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (4,552,288)Cullen LLR Ruby: Earned 2,000,000 credits (2,726,858)ESP LLR Ruby: Earned 2,000,000 credits (3,862,354)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,072,438)PPS LLR Jade: Earned 10,000,000 credits (12,611,947)PSP LLR Turquoise: Earned 5,000,000 credits (6,178,082)SoB LLR Turquoise: Earned 5,000,000 credits (5,396,650)SR5 LLR Turquoise: Earned 5,000,000 credits (8,815,713)SGS LLR Turquoise: Earned 5,000,000 credits (5,290,581)TRP LLR Ruby: Earned 2,000,000 credits (2,137,075)Woodall LLR Ruby: Earned 2,000,000 credits (2,341,684)321 Sieve Sapphire: Earned 20,000,000 credits (26,182,363)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (29,540,183)PPS Sieve Double Bronze: Earned 100,000,000 credits (106,061,773)AP 26/27 Sapphire: Earned 20,000,000 credits (23,251,293)GFN Double Bronze: Earned 100,000,000 credits (118,350,154)PSA Double Bronze: Earned 100,000,000 credits (111,409,691)
Message 139356 - Posted: 3 Apr 2020 | 11:07:29 UTC - in response to Message 139355.

Setting the number of simultaneous tasks to the number of physical cores slowed down things for me. 4 simultaneous WUs took 33-34 min each, 2 WUs were 19 min each.

So in total it resulted in less WU/t.

I didn't run the 50% test for long, 6 or so WUs were finished, but it seems like this is not always the optimal setting?

It's always a "Your mileage may vary" thing. Running only as many tasks as you have physical cores is the general accepted consensus, but may not apply to everyone. Given that only 6 workunits were completed, I wouldn't say these results are conclusive, as the computer might have been running updates in the background or whatnot.
To accurately test throughput, one would typically run benchmarks with different configurations for few days before a challenge.

xii5ku
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Posts: 62
ID: 476505
Credit: 444,183,977
RAC: 418
321 LLR Jade: Earned 10,000,000 credits (16,776,661)Cullen LLR Turquoise: Earned 5,000,000 credits (5,348,345)ESP LLR Turquoise: Earned 5,000,000 credits (9,069,027)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (8,844,412)PPS LLR Turquoise: Earned 5,000,000 credits (5,685,953)PSP LLR Jade: Earned 10,000,000 credits (11,359,246)SoB LLR Sapphire: Earned 20,000,000 credits (29,894,368)SR5 LLR Turquoise: Earned 5,000,000 credits (7,426,546)SGS LLR Ruby: Earned 2,000,000 credits (4,535,655)TRP LLR Turquoise: Earned 5,000,000 credits (6,245,157)Woodall LLR Turquoise: Earned 5,000,000 credits (7,154,312)321 Sieve Ruby: Earned 2,000,000 credits (2,923,179)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,205,264)PPS Sieve Double Silver: Earned 200,000,000 credits (236,259,906)AP 26/27 Sapphire: Earned 20,000,000 credits (25,212,148)GFN Emerald: Earned 50,000,000 credits (56,243,798)
Message 139364 - Posted: 3 Apr 2020 | 18:40:12 UTC - in response to Message 139355.
Last modified: 3 Apr 2020 | 18:59:22 UTC

Bur wrote:
Setting the number of simultaneous tasks to the number of physical cores slowed down things for me. 4 simultaneous WUs took 33-34 min each, 2 WUs were 19 min each.

So in total it resulted in less WU/t.

Your statement of "physical cores" to be 4 is incorrect: The processor has got only two physical cores, each with two hardware threads.

But your finding that your processor had lower throughput with 4 concurrent tasks than with 2 is entirely expected:

Each SGS-LLR task needs to hold more than 1.0 MB of data in the processor caches, otherwise its performance will tank due to a high rate of accesses to main memory. The i3-2120 has got 3 MB level-3 cache, hence cannot support more than two simultaneous SGS-LLR tasks without heavy memory accesses.

Now the question remains whether 2 single-threaded tasks or 2 dual-threaded tasks give higher throughput. I know the answer for some other processor architectures ("it's a wash"), but not for Sandy Bridge.


Oops, my reading comprehension could stand improvement.

Did you compare 4 single-threaded tasks with 2 single-threaded tasks, or with 2 dual-threaded tasks?
Bur wrote:
I didn't run the 50% test for long,

Sounds like 2 single-threaded tasks then. Hence maybe 2 dual-threaded tasks could improve on that.

Re: my prior statement on heavy memory access: On processors with high core count and very large cache, I actually have measured just a gradual decline in throughput as soon as the combined cache use of concurrent tasks began to exceed the cache size. Still, somewhat more than 4 MB hot data on a chip with 3 MB cache looks like too much. Though on second thought, it's merely 1 MB+ which needs to be pulled in and out all the time. That's tiny in comparison with most other LLR subprojects at PrimeGrid.

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ID: 1014486
Credit: 98,066,927
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Found 1 prime in the 2019 Tour de PrimesFound 5 primes in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (729,188)Cullen LLR Gold: Earned 500,000 credits (536,353)ESP LLR Gold: Earned 500,000 credits (521,539)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (519,336)PPS LLR Turquoise: Earned 5,000,000 credits (6,650,617)PSP LLR Gold: Earned 500,000 credits (545,010)SoB LLR Gold: Earned 500,000 credits (784,120)SR5 LLR Ruby: Earned 2,000,000 credits (2,081,611)SGS LLR Amethyst: Earned 1,000,000 credits (1,408,150)TRP LLR Gold: Earned 500,000 credits (526,734)Woodall LLR Gold: Earned 500,000 credits (539,481)321 Sieve Gold: Earned 500,000 credits (590,369)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,057,633)PPS Sieve Emerald: Earned 50,000,000 credits (57,296,887)AP 26/27 Ruby: Earned 2,000,000 credits (2,919,046)GFN Jade: Earned 10,000,000 credits (16,360,852)
Message 139370 - Posted: 3 Apr 2020 | 20:56:33 UTC

Gee, I thought these little buggers (SGS primes) would be easier to find!!

____________

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Discovered 2 mega primesFound 2 primes in the 2018 Tour de PrimesFound 2 primes in the 2019 Tour de PrimesFound 12 primes in the 2020 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,076,824)Cullen LLR Turquoise: Earned 5,000,000 credits (5,287,148)ESP LLR Turquoise: Earned 5,000,000 credits (5,174,327)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,028,260)PPS LLR Sapphire: Earned 20,000,000 credits (38,620,190)PSP LLR Turquoise: Earned 5,000,000 credits (5,151,448)SoB LLR Turquoise: Earned 5,000,000 credits (5,014,268)SR5 LLR Jade: Earned 10,000,000 credits (14,871,275)SGS LLR Turquoise: Earned 5,000,000 credits (7,860,522)TRP LLR Turquoise: Earned 5,000,000 credits (6,568,836)Woodall LLR Turquoise: Earned 5,000,000 credits (5,036,418)321 Sieve Emerald: Earned 50,000,000 credits (96,259,681)Cullen/Woodall Sieve (suspended) Double Bronze: Earned 100,000,000 credits (127,922,665)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (30,984,158)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (2,761,079,363)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,134,964)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,013,696)AP 26/27 Double Silver: Earned 200,000,000 credits (276,723,135)GFN Double Silver: Earned 200,000,000 credits (243,780,856)PSA Double Amethyst: Earned 1,000,000,000 credits (1,370,700,486)
Message 139371 - Posted: 3 Apr 2020 | 21:17:29 UTC - in response to Message 139370.

Gee, I thought these little buggers (SGS primes) would be easier to find!!

Looks like a backlog waiting to be verified.

numbermaniac
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Posts: 149
ID: 305955
Credit: 4,749,977
RAC: 4,636
321 LLR Silver: Earned 100,000 credits (106,389)PPS LLR Gold: Earned 500,000 credits (866,793)SR5 LLR Silver: Earned 100,000 credits (105,157)SGS LLR Silver: Earned 100,000 credits (139,857)TRP LLR Silver: Earned 100,000 credits (105,612)321 Sieve Gold: Earned 500,000 credits (512,303)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (503,510)PPS Sieve Amethyst: Earned 1,000,000 credits (1,577,628)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (34,269)TRP Sieve (suspended) Bronze: Earned 10,000 credits (32,679)AP 26/27 Silver: Earned 100,000 credits (117,247)GFN Gold: Earned 500,000 credits (500,739)PSA Silver: Earned 100,000 credits (140,044)
Message 139377 - Posted: 4 Apr 2020 | 1:13:56 UTC

Status graph is completely dead.


____________
8915 × 2 ^ 1507177 + 1 -- 453,710 digit PPSE
6603 × 2 ^ 1411654 + 1 -- 424,955 digit PPSE (DC)

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Joined: 21 Mar 17
Posts: 40
ID: 764476
Credit: 33,647,851
RAC: 29,995
Found 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesESP LLR Silver: Earned 100,000 credits (398,507)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (604,364)PPS LLR Sapphire: Earned 20,000,000 credits (20,828,707)PSP LLR Amethyst: Earned 1,000,000 credits (1,042,842)SoB LLR Ruby: Earned 2,000,000 credits (2,363,005)SR5 LLR Amethyst: Earned 1,000,000 credits (1,246,270)SGS LLR Gold: Earned 500,000 credits (668,871)TRP LLR Silver: Earned 100,000 credits (191,219)Woodall LLR Amethyst: Earned 1,000,000 credits (1,085,552)321 Sieve Amethyst: Earned 1,000,000 credits (1,311,863)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,085,904)AP 26/27 Silver: Earned 100,000 credits (101,075)GFN Ruby: Earned 2,000,000 credits (2,611,280)PSA Silver: Earned 100,000 credits (108,393)
Message 139383 - Posted: 4 Apr 2020 | 4:39:43 UTC

Only a few hours left on the clock!

Challenge: Sophie Germain's Birthday
App: 2 (SGS-LLR)
(As of 2020-04-04 04:31:17 UTC)

3379887 tasks have been sent out. [CPU/GPU/anonymous_platform: 3378673 (100%) / 0 (0%) / 1214 (0%)]

Of those tasks that have been sent out:

8827 (0%) were aborted. [8827 (0%) / 0 (0%) / 0 (0%)]
2579 (0%) came back with some kind of an error. [2579 (0%) / 0 (0%) / 0 (0%)]
3250356 (96%) have returned a successful result. [3250984 (96%) / 0 (0%) / 1206 (0%)]
119877 (4%) are still in progress. [119776 (4%) / 0 (0%) / 8 (0%)]

Of the tasks that have been returned successfully:

99945 (3%) are pending validation. [100207 (3%) / 0 (0%) / 31 (0%)]
3145171 (97%) have been successfully validated. [3145534 (97%) / 0 (0%) / 1175 (0%)]
5010 (0%) were invalid. [5011 (0%) / 0 (0%) / 0 (0%)]
230 (0%) are inconclusive. [232 (0%) / 0 (0%) / 0 (0%)]

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is k=5161155314187. The leading edge was at k=5025298185495 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 2.70% as much as it had prior to the challenge!

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Found 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesESP LLR Silver: Earned 100,000 credits (398,507)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (604,364)PPS LLR Sapphire: Earned 20,000,000 credits (20,828,707)PSP LLR Amethyst: Earned 1,000,000 credits (1,042,842)SoB LLR Ruby: Earned 2,000,000 credits (2,363,005)SR5 LLR Amethyst: Earned 1,000,000 credits (1,246,270)SGS LLR Gold: Earned 500,000 credits (668,871)TRP LLR Silver: Earned 100,000 credits (191,219)Woodall LLR Amethyst: Earned 1,000,000 credits (1,085,552)321 Sieve Amethyst: Earned 1,000,000 credits (1,311,863)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,085,904)AP 26/27 Silver: Earned 100,000 credits (101,075)GFN Ruby: Earned 2,000,000 credits (2,611,280)PSA Silver: Earned 100,000 credits (108,393)
Message 139385 - Posted: 4 Apr 2020 | 5:20:10 UTC

Some friendly reminders... :)

At the Conclusion of the Challenge

When the challenge completes, we would prefer users "moving on" to finish those tasks they have downloaded, if not then please ABORT the WU's (and then UPDATE the PrimeGrid project) instead of DETACHING, RESETTING, or PAUSING.

ABORTING WU's allows them to be recycled immediately; thus a much faster "clean up" to the end of a Challenge. DETACHING, RESETTING, and PAUSING WU's causes them to remain in limbo until they EXPIRE. Therefore, we must wait until WU's expire to send them out to be completed.

Likewise, if you're shutting down the computer for an extended period of time, or deleting the VM (Virtual Machine), please ABORT all remaining tasks first. Also, be aware that merely shutting off a cloud server doesn't stop the billing. You have to destroy/delete the server if you don't want to continue to be charged for it.

Thank you!

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Message 139387 - Posted: 4 Apr 2020 | 6:04:48 UTC - in response to Message 139364.

Sounds like 2 single-threaded tasks then. Hence maybe 2 dual-threaded tasks could improve on that.
All I changed from default was "use 50% of cores" instead of 100% (2 physical/4 logical cores i3). So I think it ran single threaded. With the limited test cases it seemed to slow things down.

Just to make sure: the setting you suggest is the "Max # of threads for each task"? So basically, set the number of cores to use to the percentage of physical cores vs logical. And "max # of threads" to 1/n (where n = #physicalCores/#logicalCores)? Spoken like the true mathematician I am not. ;)

As I don't have access to the client right now I probably cannot change the # of cores setting?


Apart from the SGS challenge, are those settings generally recommend? I see the HT warning for a lot of categories. I will do some more testing on monday in that case when I continue working towards the PPS silver badge. :)

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Discovered 1 mega primeFound 4 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (4,552,288)Cullen LLR Ruby: Earned 2,000,000 credits (2,726,858)ESP LLR Ruby: Earned 2,000,000 credits (3,862,354)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,072,438)PPS LLR Jade: Earned 10,000,000 credits (12,611,947)PSP LLR Turquoise: Earned 5,000,000 credits (6,178,082)SoB LLR Turquoise: Earned 5,000,000 credits (5,396,650)SR5 LLR Turquoise: Earned 5,000,000 credits (8,815,713)SGS LLR Turquoise: Earned 5,000,000 credits (5,290,581)TRP LLR Ruby: Earned 2,000,000 credits (2,137,075)Woodall LLR Ruby: Earned 2,000,000 credits (2,341,684)321 Sieve Sapphire: Earned 20,000,000 credits (26,182,363)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (29,540,183)PPS Sieve Double Bronze: Earned 100,000,000 credits (106,061,773)AP 26/27 Sapphire: Earned 20,000,000 credits (23,251,293)GFN Double Bronze: Earned 100,000,000 credits (118,350,154)PSA Double Bronze: Earned 100,000,000 credits (111,409,691)
Message 139388 - Posted: 4 Apr 2020 | 7:52:33 UTC - in response to Message 139387.
Last modified: 4 Apr 2020 | 7:55:36 UTC

Sounds like 2 single-threaded tasks then. Hence maybe 2 dual-threaded tasks could improve on that.
All I changed from default was "use 50% of cores" instead of 100% (2 physical/4 logical cores i3). So I think it ran single threaded. With the limited test cases it seemed to slow things down.

Just to make sure: the setting you suggest is the "Max # of threads for each task"? So basically, set the number of cores to use to the percentage of physical cores vs logical. And "max # of threads" to 1/n (where n = #physicalCores/#logicalCores)? Spoken like the true mathematician I am not. ;)

As I don't have access to the client right now I probably cannot change the # of cores setting?

In your BOINC client, in Options -> Computing Preferences, set "Use at most ##% of the CPUs" to 50%.
Then, you would set "Max # of simultaneous PrimeGrid tasks" to "No Limit" and "Multi-threading: Max # of threads for each task" to 1 for SGS, irrespective of how many cores/threads you have.

That way, given that your system has n cores and 2n threads (assuming hyperthreading is left on), you would receive n tasks, each using 1 thread. You want to leave half the logical cores "unused".

Apart from the SGS challenge, are those settings generally recommend? I see the HT warning for a lot of categories. I will do some more testing on monday in that case when I continue working towards the PPS silver badge. :)

We suggest leaving half your logical cores free if you have hyperthreading on for all LLR tasks. On the other hand, sieving subprojects benefit from hyperthreading, and it does not seem to make much difference on CPU GFN tasks.

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Message 139390 - Posted: 4 Apr 2020 | 8:04:41 UTC - in response to Message 139387.
Last modified: 4 Apr 2020 | 8:08:38 UTC

Bur wrote:
Just to make sure: the setting you suggest is the "Max # of threads for each task"?

Yes, I mean the setting which is called "Multi-threading: Max # of threads for each task" currently but should better be written as "Multi-threading: # of threads for each task", AFAICT.

Bur wrote:
So basically, set the number of cores to use to the percentage of physical cores vs logical. And "max # of threads" to 1/n (where n = #physicalCores/#logicalCores)? Spoken like the true mathematician I am not. ;)

As I don't have access to the client right now I probably cannot change the # of cores setting?

Note, I suggested this not as an optimization for your hardware, but for testing purpose (to learn more about where the throughput optimum of this Sandy Bridge i3 really is, and why). That is, I meant it more as something which could be tried if and when there is spare time, outside of a contest (unless you didn't run such a test already, which I now understand you haven't indeed).

Two more configs which could be tried:

  • 3 single-threaded tasks concurrently
  • 2 single-threaded tasks and 1 dual-threaded task concurrently (more difficult to set up, but possible)

That's because of the 1+ MB cache footprint per task, while this i3 has got 3 MB L3 cache.

Bur wrote:
Apart from the SGS challenge, are those settings generally recommend? I see the HT warning for a lot of categories. I will do some more testing on monday in that case when I continue working towards the PPS silver badge. :)

I meant it as a question, not as a recommendation, especially since I misunderstood your performance report at my first reading. :-)

I suspect these postings which recommend to avoid Intel Hyperthreading in LLR based PrimeGrid subprojects are coming mostly from people who never did any own measurements at all, or didn't measure in recent years, or applied poor testing methods. Proper advice on whether or not to use Hyperthreading needs to take the particular hardware and subproject into account, what the optimization goal is (throughput, run time, efficiency), and whether LLR runs exclusive or together with other workload.

Alas I have very little own test coverage for processors similar to yours, hence can't give a precise recommendation.

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321 LLR Amethyst: Earned 1,000,000 credits (1,002,590)Cullen LLR Gold: Earned 500,000 credits (681,105)ESP LLR Amethyst: Earned 1,000,000 credits (1,027,780)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (540,402)PPS LLR Ruby: Earned 2,000,000 credits (2,100,495)PSP LLR Amethyst: Earned 1,000,000 credits (1,036,776)SoB LLR Amethyst: Earned 1,000,000 credits (1,028,329)SR5 LLR Amethyst: Earned 1,000,000 credits (1,024,302)SGS LLR Gold: Earned 500,000 credits (603,936)TRP LLR Amethyst: Earned 1,000,000 credits (1,008,564)Woodall LLR Gold: Earned 500,000 credits (512,766)321 Sieve Ruby: Earned 2,000,000 credits (2,031,174)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,192,252)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,371,859)PPS Sieve Sapphire: Earned 20,000,000 credits (25,806,415)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (902,189)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,011,842)AP 26/27 Ruby: Earned 2,000,000 credits (2,416,093)GFN Sapphire: Earned 20,000,000 credits (27,935,934)
Message 139392 - Posted: 4 Apr 2020 | 9:26:21 UTC

It seems we'll have an irregular finish of this tournament - my computers are no longer receiving work.

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Discovered 4 mega primesEliminated 1 conjecture "k"Discovered 1 AP26Found 1 prime in the 2018 Tour de PrimesFound 2 primes in the 2019 Tour de PrimesFound 2 primes in the 2020 Tour de PrimesFound 1 mega prime in the 2020 Tour de PrimesFound 1 prime in the 2020 Tour de Primes Mountain StageFound 1 mega prime in the 2020 Tour de Primes Mountain Stage321 LLR Ruby: Earned 2,000,000 credits (4,574,478)Cullen LLR Ruby: Earned 2,000,000 credits (2,080,460)ESP LLR Gold: Earned 500,000 credits (502,325)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,000,054)PPS LLR Emerald: Earned 50,000,000 credits (91,362,501)PSP LLR Bronze: Earned 10,000 credits (23,710)SoB LLR Sapphire: Earned 20,000,000 credits (39,985,666)SR5 LLR Jade: Earned 10,000,000 credits (16,535,456)SGS LLR Jade: Earned 10,000,000 credits (18,555,210)TRP LLR Gold: Earned 500,000 credits (525,711)Woodall LLR Jade: Earned 10,000,000 credits (15,028,246)321 Sieve Amethyst: Earned 1,000,000 credits (1,062,420)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,606,749)PPS Sieve Sapphire: Earned 20,000,000 credits (23,296,981)AP 26/27 Double Silver: Earned 200,000,000 credits (225,304,261)GFN Double Bronze: Earned 100,000,000 credits (146,045,712)PSA Emerald: Earned 50,000,000 credits (52,891,089)
Message 139393 - Posted: 4 Apr 2020 | 9:29:16 UTC - in response to Message 139392.

It seems we'll have an irregular finish of this tournament - my computers are no longer receiving work.


Same here.

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321 LLR Silver: Earned 100,000 credits (110,343)Cullen LLR Silver: Earned 100,000 credits (111,365)ESP LLR Bronze: Earned 10,000 credits (22,626)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (19,436)PPS LLR Bronze: Earned 10,000 credits (85,773)PSP LLR Bronze: Earned 10,000 credits (45,898)SoB LLR Bronze: Earned 10,000 credits (21,631)SR5 LLR Bronze: Earned 10,000 credits (35,867)SGS LLR Bronze: Earned 10,000 credits (38,110)TRP LLR Silver: Earned 100,000 credits (105,287)Woodall LLR Bronze: Earned 10,000 credits (25,110)321 Sieve Silver: Earned 100,000 credits (101,440)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (29,884)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (43,691)PPS Sieve Bronze: Earned 10,000 credits (61,161)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (103,816)TRP Sieve (suspended) Bronze: Earned 10,000 credits (31,094)AP 26/27 Silver: Earned 100,000 credits (101,263)GFN Bronze: Earned 10,000 credits (58,711)PSA Silver: Earned 100,000 credits (307,779)
Message 139394 - Posted: 4 Apr 2020 | 9:29:54 UTC

I wasn't receiving any work either for a couple of minutes, but now it appears to be back to normal.
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Discovered 3 mega primesFound 12 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 6 primes in the 2019 Tour de PrimesFound 7 primes in the 2020 Tour de PrimesFound 2 mega primes in the 2020 Tour de PrimesFound 1 prime in the 2020 Tour de Primes Mountain Stage321 LLR Sapphire: Earned 20,000,000 credits (26,212,980)Cullen LLR Sapphire: Earned 20,000,000 credits (20,816,146)ESP LLR Sapphire: Earned 20,000,000 credits (25,200,535)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,492,993)PPS LLR Emerald: Earned 50,000,000 credits (91,077,777)PSP LLR Sapphire: Earned 20,000,000 credits (40,124,127)SoB LLR Sapphire: Earned 20,000,000 credits (38,473,734)SR5 LLR Sapphire: Earned 20,000,000 credits (33,448,571)SGS LLR Sapphire: Earned 20,000,000 credits (45,060,245)TPS LLR (retired) Bronze: Earned 10,000 credits (76,266)TRP LLR Sapphire: Earned 20,000,000 credits (22,170,865)Woodall LLR Sapphire: Earned 20,000,000 credits (22,331,444)321 Sieve Double Bronze: Earned 100,000,000 credits (106,313,322)Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (35,459,921)Generalized Cullen/Woodall Sieve (suspended) Double Bronze: Earned 100,000,000 credits (103,015,099)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (3,003,936,369)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (11,101,054)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (25,930,215)AP 26/27 Double Bronze: Earned 100,000,000 credits (175,543,168)GFN Double Silver: Earned 200,000,000 credits (363,588,578)PSA Double Bronze: Earned 100,000,000 credits (101,915,127)
Message 139395 - Posted: 4 Apr 2020 | 9:32:25 UTC

I cannot get tasks - computer room has fallen several degrees in the last few minutes. Boost the server please :)
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Message 139396 - Posted: 4 Apr 2020 | 9:33:40 UTC - in response to Message 139394.

I am receiving tasks but not any SGS.

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Discovered the World's First AP27!!!Discovered 9 mega primesDiscovered 1 AP272018 Tour de Primes largest primeFound 4 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,910,214)Cullen LLR Jade: Earned 10,000,000 credits (17,346,882)ESP LLR Turquoise: Earned 5,000,000 credits (6,404,450)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,466,498)PPS LLR Sapphire: Earned 20,000,000 credits (44,433,561)PSP LLR Turquoise: Earned 5,000,000 credits (7,758,266)SoB LLR Sapphire: Earned 20,000,000 credits (36,287,070)SR5 LLR Turquoise: Earned 5,000,000 credits (8,227,593)SGS LLR Turquoise: Earned 5,000,000 credits (5,177,463)TRP LLR Sapphire: Earned 20,000,000 credits (26,311,351)Woodall LLR Turquoise: Earned 5,000,000 credits (5,062,771)321 Sieve Turquoise: Earned 5,000,000 credits (7,116,748)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,892,369)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,515,338)PPS Sieve Double Gold: Earned 500,000,000 credits (792,491,761)TRP Sieve (suspended) Silver: Earned 100,000 credits (121,416)AP 26/27 Emerald: Earned 50,000,000 credits (87,324,757)GFN Double Ruby: Earned 2,000,000,000 credits (3,064,168,577)
Message 139397 - Posted: 4 Apr 2020 | 9:34:42 UTC

Seems to be the dumping of hoarded tasks is causing it :(
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Found 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,015,755)Cullen LLR Ruby: Earned 2,000,000 credits (2,037,766)ESP LLR Ruby: Earned 2,000,000 credits (2,033,022)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,017,050)PPS LLR Turquoise: Earned 5,000,000 credits (7,272,400)PSP LLR Ruby: Earned 2,000,000 credits (2,480,373)SoB LLR Ruby: Earned 2,000,000 credits (4,704,280)SR5 LLR Ruby: Earned 2,000,000 credits (2,513,803)SGS LLR Ruby: Earned 2,000,000 credits (2,291,796)TRP LLR Ruby: Earned 2,000,000 credits (2,051,129)Woodall LLR Ruby: Earned 2,000,000 credits (2,025,650)321 Sieve Turquoise: Earned 5,000,000 credits (6,465,391)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,154,201)PPS Sieve Turquoise: Earned 5,000,000 credits (5,022,681)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,135,080)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,119,667)AP 26/27 Jade: Earned 10,000,000 credits (10,249,005)GFN Jade: Earned 10,000,000 credits (15,240,854)PSA Turquoise: Earned 5,000,000 credits (5,895,092)
Message 139398 - Posted: 4 Apr 2020 | 9:38:07 UTC

The server seems to be overloaded with something: Server load 185.90, 225.13, 228.08 (typically all the numbers are around 1-2-3).

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Discovered 4 mega primesEliminated 1 conjecture "k"Discovered 1 AP26Found 1 prime in the 2018 Tour de PrimesFound 2 primes in the 2019 Tour de PrimesFound 2 primes in the 2020 Tour de PrimesFound 1 mega prime in the 2020 Tour de PrimesFound 1 prime in the 2020 Tour de Primes Mountain StageFound 1 mega prime in the 2020 Tour de Primes Mountain Stage321 LLR Ruby: Earned 2,000,000 credits (4,574,478)Cullen LLR Ruby: Earned 2,000,000 credits (2,080,460)ESP LLR Gold: Earned 500,000 credits (502,325)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,000,054)PPS LLR Emerald: Earned 50,000,000 credits (91,362,501)PSP LLR Bronze: Earned 10,000 credits (23,710)SoB LLR Sapphire: Earned 20,000,000 credits (39,985,666)SR5 LLR Jade: Earned 10,000,000 credits (16,535,456)SGS LLR Jade: Earned 10,000,000 credits (18,555,210)TRP LLR Gold: Earned 500,000 credits (525,711)Woodall LLR Jade: Earned 10,000,000 credits (15,028,246)321 Sieve Amethyst: Earned 1,000,000 credits (1,062,420)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,606,749)PPS Sieve Sapphire: Earned 20,000,000 credits (23,296,981)AP 26/27 Double Silver: Earned 200,000,000 credits (225,304,261)GFN Double Bronze: Earned 100,000,000 credits (146,045,712)PSA Emerald: Earned 50,000,000 credits (52,891,089)
Message 139399 - Posted: 4 Apr 2020 | 9:45:30 UTC

Getting new tasks now.

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321 LLR Bronze: Earned 10,000 credits (58,257)Cullen LLR Bronze: Earned 10,000 credits (36,962)ESP LLR Bronze: Earned 10,000 credits (25,105)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (22,373)PPS LLR Silver: Earned 100,000 credits (144,465)PSP LLR Bronze: Earned 10,000 credits (65,677)SoB LLR Bronze: Earned 10,000 credits (66,029)SR5 LLR Bronze: Earned 10,000 credits (48,432)SGS LLR Bronze: Earned 10,000 credits (21,194)TRP LLR Bronze: Earned 10,000 credits (39,419)Woodall LLR Bronze: Earned 10,000 credits (19,031)321 Sieve Silver: Earned 100,000 credits (184,795)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Gold: Earned 500,000 credits (576,441)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Silver: Earned 100,000 credits (189,280)PSA Silver: Earned 100,000 credits (358,037)
Message 139401 - Posted: 4 Apr 2020 | 10:29:15 UTC

I had a "short shortage" about one and a half hours ago. It's fine now.
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Found 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (6,002,936)Cullen LLR Turquoise: Earned 5,000,000 credits (5,005,909)ESP LLR Turquoise: Earned 5,000,000 credits (5,303,526)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,202,873)PPS LLR Turquoise: Earned 5,000,000 credits (5,900,040)PSP LLR Turquoise: Earned 5,000,000 credits (5,513,728)SoB LLR Turquoise: Earned 5,000,000 credits (8,851,996)SR5 LLR Turquoise: Earned 5,000,000 credits (5,199,189)SGS LLR Turquoise: Earned 5,000,000 credits (5,100,018)TRP LLR Turquoise: Earned 5,000,000 credits (5,008,328)Woodall LLR Turquoise: Earned 5,000,000 credits (5,124,820)321 Sieve Turquoise: Earned 5,000,000 credits (5,271,846)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (268,250)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,502)PPS Sieve Double Silver: Earned 200,000,000 credits (300,002,145)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,133)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,970)AP 26/27 Double Bronze: Earned 100,000,000 credits (162,645,847)GFN Double Bronze: Earned 100,000,000 credits (130,000,018)PSA Double Silver: Earned 200,000,000 credits (200,000,001)
Message 139403 - Posted: 4 Apr 2020 | 10:49:23 UTC

Still in the thick of it right now. We've just done a quick reboot. Try not to press update!

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Credit: 13,986,016
RAC: 21,861
Found 1 prime in the 2020 Tour de Primes321 LLR Silver: Earned 100,000 credits (360,928)Cullen LLR Bronze: Earned 10,000 credits (98,851)ESP LLR Silver: Earned 100,000 credits (139,922)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Ruby: Earned 2,000,000 credits (4,686,828)PSP LLR Silver: Earned 100,000 credits (212,242)SoB LLR Silver: Earned 100,000 credits (237,390)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Bronze: Earned 10,000 credits (99,305)TRP LLR Bronze: Earned 10,000 credits (71,060)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve Silver: Earned 100,000 credits (175,037)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 139406 - Posted: 4 Apr 2020 | 11:56:27 UTC

Some questions of lucky and unlucky participants that may be fun to get an answer to after this challenge:

(A) Who found the most prime (how many)?

For each user who found a prime, define Q as the number of valid tasks done divided by the number of primes found.

(B) Who had the lowest Q (what value and how many primes)?

(C) Who had the highest Q (what value and how many primes)?

Finally:

(D) Who did the most valid tasks without finding a single prime?

The same questions could be asked for teams, of course.

/JeppeSN

Sellyme
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Joined: 12 Apr 11
Posts: 95
ID: 94633
Credit: 63,899,132
RAC: 315,112
321 LLR Amethyst: Earned 1,000,000 credits (1,122,393)Cullen LLR Amethyst: Earned 1,000,000 credits (1,190,783)ESP LLR Amethyst: Earned 1,000,000 credits (1,400,801)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,082,600)PPS LLR Amethyst: Earned 1,000,000 credits (1,003,566)PSP LLR Silver: Earned 100,000 credits (189,163)SoB LLR Gold: Earned 500,000 credits (770,086)SR5 LLR Amethyst: Earned 1,000,000 credits (1,054,585)SGS LLR Amethyst: Earned 1,000,000 credits (1,373,163)TRP LLR Amethyst: Earned 1,000,000 credits (1,240,768)Woodall LLR Gold: Earned 500,000 credits (859,086)321 Sieve Amethyst: Earned 1,000,000 credits (1,086,980)PPS Sieve Sapphire: Earned 20,000,000 credits (29,791,223)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (196,262)TRP Sieve (suspended) Silver: Earned 100,000 credits (106,116)AP 26/27 Amethyst: Earned 1,000,000 credits (1,350,362)GFN Sapphire: Earned 20,000,000 credits (20,079,227)
Message 139408 - Posted: 4 Apr 2020 | 12:31:38 UTC
Last modified: 4 Apr 2020 | 12:32:05 UTC

I'm super proud of my team managing to slot ourselves in at 18th place. Considering that we only had two active users when the challenge started, being able to return over 40,000 tasks and beat some powerhouse teams is a mammoth effort.

On a personal level, current stats are showing me as having finished on 999,994.13 credits. Whoops. Just one more task!

KeithProject donor
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Joined: 8 Dec 13
Posts: 402
ID: 284516
Credit: 372,951,895
RAC: 211,089
Discovered 1 mega primeFound 2 primes in the 2018 Tour de PrimesFound 3 primes in the 2019 Tour de PrimesFound 2 primes in the 2020 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,055,954)Cullen LLR Turquoise: Earned 5,000,000 credits (5,064,934)ESP LLR Turquoise: Earned 5,000,000 credits (5,005,551)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,308,650)PPS LLR Turquoise: Earned 5,000,000 credits (9,873,020)PSP LLR Turquoise: Earned 5,000,000 credits (5,032,097)SoB LLR Jade: Earned 10,000,000 credits (10,042,754)SR5 LLR Jade: Earned 10,000,000 credits (10,002,093)SGS LLR Jade: Earned 10,000,000 credits (10,000,020)TRP LLR Turquoise: Earned 5,000,000 credits (5,759,074)Woodall LLR Turquoise: Earned 5,000,000 credits (5,053,050)321 Sieve Jade: Earned 10,000,000 credits (10,120,432)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,004,494)PPS Sieve Double Bronze: Earned 100,000,000 credits (100,111,958)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,002,980)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,010,755)AP 26/27 Emerald: Earned 50,000,000 credits (80,734,667)GFN Emerald: Earned 50,000,000 credits (97,326,569)PSA Silver: Earned 100,000 credits (442,843)
Message 139414 - Posted: 4 Apr 2020 | 13:47:16 UTC - in response to Message 139406.
Last modified: 4 Apr 2020 | 13:55:59 UTC

Some questions of lucky and unlucky participants that may be fun to get an answer to after this challenge:

(A) Who found the most prime (how many)?

For each user who found a prime, define Q as the number of valid tasks done divided by the number of primes found.

(B) Who had the lowest Q (what value and how many primes)?

(C) Who had the highest Q (what value and how many primes)?

Finally:

(D) Who did the most valid tasks without finding a single prime?

The same questions could be asked for teams, of course.

/JeppeSN


I can't answer all of this, but I can answer some of it.

We had 128 (2^7) total primes.
tng* had the most primes with 11 primary finds.
NightCoffee had the most DC's with 20.
NightCoffee had the most combined 1st and DC with 26 total primes.

http://www.primegrid.com/primes/primes.php?project=SGS&factors=+&only=ALL&announcements=ALL&sortby=date&dc=yes&search=

And a little excel/textpad work got me those answers.

I may need to edit this post as pending primes clear through...
____________
My Primes
Badge Score: 2*1 + 4*2 + 6*9 + 7*4 + 9*2 + 10*1 = 120

Profile vaughanProject donor
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Joined: 11 Aug 05
Posts: 213
ID: 224
Credit: 4,312,400,718
RAC: 33,940
Discovered 3 mega primesFound 12 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 6 primes in the 2019 Tour de PrimesFound 7 primes in the 2020 Tour de PrimesFound 2 mega primes in the 2020 Tour de PrimesFound 1 prime in the 2020 Tour de Primes Mountain Stage321 LLR Sapphire: Earned 20,000,000 credits (26,212,980)Cullen LLR Sapphire: Earned 20,000,000 credits (20,816,146)ESP LLR Sapphire: Earned 20,000,000 credits (25,200,535)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,492,993)PPS LLR Emerald: Earned 50,000,000 credits (91,077,777)PSP LLR Sapphire: Earned 20,000,000 credits (40,124,127)SoB LLR Sapphire: Earned 20,000,000 credits (38,473,734)SR5 LLR Sapphire: Earned 20,000,000 credits (33,448,571)SGS LLR Sapphire: Earned 20,000,000 credits (45,060,245)TPS LLR (retired) Bronze: Earned 10,000 credits (76,266)TRP LLR Sapphire: Earned 20,000,000 credits (22,170,865)Woodall LLR Sapphire: Earned 20,000,000 credits (22,331,444)321 Sieve Double Bronze: Earned 100,000,000 credits (106,313,322)Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (35,459,921)Generalized Cullen/Woodall Sieve (suspended) Double Bronze: Earned 100,000,000 credits (103,015,099)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (3,003,936,369)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (11,101,054)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (25,930,215)AP 26/27 Double Bronze: Earned 100,000,000 credits (175,543,168)GFN Double Silver: Earned 200,000,000 credits (363,588,578)PSA Double Bronze: Earned 100,000,000 credits (101,915,127)
Message 139434 - Posted: 4 Apr 2020 | 22:56:46 UTC

So what actually happened towards the end of the race? Why were we unable to get tasks for a while?

ReggieProject donor
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Joined: 10 May 14
Posts: 76
ID: 311759
Credit: 88,314,435
RAC: 138,370
Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de Primes321 LLR Gold: Earned 500,000 credits (501,251)Cullen LLR Gold: Earned 500,000 credits (507,205)ESP LLR Gold: Earned 500,000 credits (504,771)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (500,544)PPS LLR Gold: Earned 500,000 credits (500,330)PSP LLR Gold: Earned 500,000 credits (530,606)SoB LLR Gold: Earned 500,000 credits (507,131)SR5 LLR Silver: Earned 100,000 credits (215,403)SGS LLR Gold: Earned 500,000 credits (500,037)TRP LLR Silver: Earned 100,000 credits (112,730)Woodall LLR Silver: Earned 100,000 credits (228,485)321 Sieve Silver: Earned 100,000 credits (100,021)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,420)PPS Sieve Sapphire: Earned 20,000,000 credits (20,579,955)AP 26/27 Jade: Earned 10,000,000 credits (19,968,377)GFN Sapphire: Earned 20,000,000 credits (20,983,160)PSA Sapphire: Earned 20,000,000 credits (20,070,245)
Message 139439 - Posted: 5 Apr 2020 | 2:23:11 UTC - in response to Message 139434.

So what actually happened towards the end of the race? Why were we unable to get tasks for a while?


General consensus among admins is memory corruption. We saw mention of corruption in the apache logs and got lots of emails from the cron daemon with strange contents like "i: command not found" and extremely long lists of php warnings and errors from jobs that run nearly every minute. Since we have ECC RAM, this is very concerning. We rebooted the server and everything seems good again. The admins with more experience in this area (not me) will look into this more. The servers are a few years old at this point, but hopefully we can get some more time out of them.

Profile Michael GutierrezProject donor
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Joined: 21 Mar 17
Posts: 40
ID: 764476
Credit: 33,647,851
RAC: 29,995
Found 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesESP LLR Silver: Earned 100,000 credits (398,507)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (604,364)PPS LLR Sapphire: Earned 20,000,000 credits (20,828,707)PSP LLR Amethyst: Earned 1,000,000 credits (1,042,842)SoB LLR Ruby: Earned 2,000,000 credits (2,363,005)SR5 LLR Amethyst: Earned 1,000,000 credits (1,246,270)SGS LLR Gold: Earned 500,000 credits (668,871)TRP LLR Silver: Earned 100,000 credits (191,219)Woodall LLR Amethyst: Earned 1,000,000 credits (1,085,552)321 Sieve Amethyst: Earned 1,000,000 credits (1,311,863)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,085,904)AP 26/27 Silver: Earned 100,000 credits (101,075)GFN Ruby: Earned 2,000,000 credits (2,611,280)PSA Silver: Earned 100,000 credits (108,393)
Message 139440 - Posted: 5 Apr 2020 | 4:27:21 UTC

And we're done! Cleanup will be starting soon, it will take about 2-3 weeks.

Challenge: Sophie Germain's Birthday
App: 2 (SGS-LLR)
(As of 2020-04-05 04:11:45 UTC)

3776445 tasks have been sent out. [CPU/GPU/anonymous_platform: 3775096 (100%) / 0 (0%) / 1349 (0%)]

Of those tasks that have been sent out:

16997 (0%) were aborted. [16997 (0%) / 0 (0%) / 0 (0%)]
2804 (0%) came back with some kind of an error. [2804 (0%) / 0 (0%) / 0 (0%)]
3659125 (97%) have returned a successful result. [3657786 (97%) / 0 (0%) / 1339 (0%)]
31124 (1%) are still in progress. [31112 (1%) / 0 (0%) / 0 (0%)]

Of the tasks that have been returned successfully:

29333 (1%) are pending validation. [29313 (1%) / 0 (0%) / 4 (0%)]
3624112 (99%) have been successfully validated. [3622793 (99%) / 0 (0%) / 1335 (0%)]
5623 (0%) were invalid. [5623 (0%) / 0 (0%) / 0 (0%)]
57 (0%) are inconclusive. [57 (0%) / 0 (0%) / 0 (0%)]

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is k=5176581829347. The leading edge was at k=5025298185495 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 3.01% as much as it had prior to the challenge!

Profile Michael GutierrezProject donor
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Joined: 21 Mar 17
Posts: 40
ID: 764476
Credit: 33,647,851
RAC: 29,995
Found 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesESP LLR Silver: Earned 100,000 credits (398,507)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (604,364)PPS LLR Sapphire: Earned 20,000,000 credits (20,828,707)PSP LLR Amethyst: Earned 1,000,000 credits (1,042,842)SoB LLR Ruby: Earned 2,000,000 credits (2,363,005)SR5 LLR Amethyst: Earned 1,000,000 credits (1,246,270)SGS LLR Gold: Earned 500,000 credits (668,871)TRP LLR Silver: Earned 100,000 credits (191,219)Woodall LLR Amethyst: Earned 1,000,000 credits (1,085,552)321 Sieve Amethyst: Earned 1,000,000 credits (1,311,863)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,085,904)AP 26/27 Silver: Earned 100,000 credits (101,075)GFN Ruby: Earned 2,000,000 credits (2,611,280)PSA Silver: Earned 100,000 credits (108,393)
Message 139445 - Posted: 5 Apr 2020 | 13:27:49 UTC
Last modified: 10 Apr 2020 | 3:33:30 UTC

Cleanup Status:

Apr 5: Sophie Germain's Birthday: 24406 tasks outstanding; 4927 affecting individual (121) scoring positions; 521 affecting team (6) scoring positions.
Apr 6: Sophie Germain's Birthday: 21340 tasks outstanding; 3881 affecting individual (112) scoring positions; 440 affecting team (6) scoring positions.
Apr 7: Sophie Germain's Birthday: 15889 tasks outstanding; 2236 affecting individual (84) scoring positions; 68 affecting team (4) scoring positions.
Apr 8: Sophie Germain's Birthday: 12018 tasks outstanding; 1478 affecting individual (65) scoring positions; 57 affecting team (4) scoring positions.
Apr 9: Sophie Germain's Birthday: 7151 tasks outstanding; 690 affecting individual (35) scoring positions; 16 affecting team (2) scoring positions.
Apr 10: Sophie Germain's Birthday: 340 tasks outstanding; 10 affecting individual (4) scoring positions; 0 affecting team (0) scoring positions.

Profile Michael GutierrezProject donor
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Joined: 21 Mar 17
Posts: 40
ID: 764476
Credit: 33,647,851
RAC: 29,995
Found 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesESP LLR Silver: Earned 100,000 credits (398,507)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (604,364)PPS LLR Sapphire: Earned 20,000,000 credits (20,828,707)PSP LLR Amethyst: Earned 1,000,000 credits (1,042,842)SoB LLR Ruby: Earned 2,000,000 credits (2,363,005)SR5 LLR Amethyst: Earned 1,000,000 credits (1,246,270)SGS LLR Gold: Earned 500,000 credits (668,871)TRP LLR Silver: Earned 100,000 credits (191,219)Woodall LLR Amethyst: Earned 1,000,000 credits (1,085,552)321 Sieve Amethyst: Earned 1,000,000 credits (1,311,863)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,085,904)AP 26/27 Silver: Earned 100,000 credits (101,075)GFN Ruby: Earned 2,000,000 credits (2,611,280)PSA Silver: Earned 100,000 credits (108,393)
Message 139598 - Posted: 11 Apr 2020 | 3:07:52 UTC

The results are final!

Top 3 Individuals:
1. NightCoffee
2. B2lee
3. tng*

Top 3 Teams:
1. Aggie The Pew
2. Czech National Team
3. Antarctic Crunchers

Congrats to all participants on our most successful SGS challenge yet! We almost crashed the server this time! See you all at the soon-to-be-renamed Top Gun Challenge in June!

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